Octoquinquagintanongentillion

An octoquinquagintanongentillion is equal to \(10^{2877}\) in the short scale and \(10^{5748}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 958th -illion number.
In the long scale, \(10^{2877}\) is called novenseptuagintaquadringentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2877}\) (exact) 	\(1\times10^{2877}\) (exact)
Arrow notation 	\(10\uparrow 2877\) (exact) 	\(10\uparrow 2877\) (exact)
Steinhaus-Moser Notation 	964[3] 	965[3]
Chained arrow notation 	\(10\rightarrow 2877\) (exact) 	\(10\rightarrow 2877\) (exact)
Taro's multivariable Ackermann function	A(3,9554) 	A(3,9555)
BEAF & Bird's array notation 	{10,2877} (exact) 	{10,2877} (exact)
Hyper-E notation 	E2877 (exact) 	E2877 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(9)\) 	\(s(1)^3(\lambda x.x+1)(10)\)
m(n) map 	m(1)(964) 	m(1)(965)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(9543)\) 	\(f_2(9544)\)
Hardy hierarchy 	\(H_{\omega^2}(9543)\) 	\(H_{\omega^2}(9544)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 8+\omega 7+7}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 8+\omega 7+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{5748}\) (exact) 	\(1\times10^{5748}\) (exact)
Arrow notation 	\(10\uparrow 5748\) (exact) 	\(10\uparrow 5748\) (exact)
Steinhaus-Moser Notation 	1769[3] 	1770[3]
Chained arrow notation 	\(10\rightarrow 5748\) (exact) 	\(10\rightarrow 5748\) (exact)
Taro's multivariable Ackermann function	A(3,19091) 	A(3,19092)
BEAF & Bird's array notation 	{10,5748} (exact) 	{10,5748} (exact)
Hyper-E notation 	E5748 (exact) 	E5748 (exact)
s(n) map 	\(s(1)^3(\lambda x.x+1)(10)\) 	\(s(1)^3(\lambda x.x+1)(11)\)
m(n) map 	m(1)(1769) 	m(1)(1770)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(19080)\) 	\(f_2(19081)\)
Hardy hierarchy 	\(H_{\omega^2}(19080)\) 	\(H_{\omega^2}(19081)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 5+\omega^2 7+\omega 4+8}}(10)\) (exact)	\(g_{\omega^{\omega^3 5+\omega^2 7+\omega 4+8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Powers of 10 with squarefree exponent
Category:Tier 1 -illion numbers