Octosexagintaoctingentillion

An octosexagintaoctingentillion is equal to \(10^{2607}\) in the short scale and \(10^{5208}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 868th -illion number.
In the long scale, \(10^{2607}\) is called quattuortrigintaquadringentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2607}\) (exact) 	\(1\times10^{2607}\) (exact)
Arrow notation 	\(10\uparrow 2607\) (exact) 	\(10\uparrow 2607\) (exact)
Steinhaus-Moser Notation 	884[3] 	885[3]
Chained arrow notation 	\(10\rightarrow 2607\) (exact) 	\(10\rightarrow 2607\) (exact)
Taro's multivariable Ackermann function	A(3,8657) 	A(3,8658)
BEAF & Bird's array notation 	{10,2607} (exact) 	{10,2607} (exact)
Hyper-E notation 	E2607 (exact) 	E2607 (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)(884) 	m(1)(885)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(8647)\) 	\(f_2(8648)\)
Hardy hierarchy 	\(H_{\omega^2}(8647)\) 	\(H_{\omega^2}(8648)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 6+7}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 6+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{5208}\) (exact) 	\(1\times10^{5208}\) (exact)
Arrow notation 	\(10\uparrow 5208\) (exact) 	\(10\uparrow 5208\) (exact)
Steinhaus-Moser Notation 	1622[3] 	1623[3]
Chained arrow notation 	\(10\rightarrow 5208\) (exact) 	\(10\rightarrow 5208\) (exact)
Taro's multivariable Ackermann function	A(3,17297) 	A(3,17298)
BEAF & Bird's array notation 	{10,5208} (exact) 	{10,5208} (exact)
Hyper-E notation 	E5208 (exact) 	E5208 (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)(1622) 	m(1)(1623)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(17286)\) 	\(f_2(17287)\)
Hardy hierarchy 	\(H_{\omega^2}(17286)\) 	\(H_{\omega^2}(17287)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 5+\omega^2 2+8}}(10)\) (exact)	\(g_{\omega^{\omega^3 5+\omega^2 2+8}}(10)\) (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