Octotrigintasescentillion

An octotrigintasescentillion is equal to \(10^{1917}\) in the short scale and \(10^{3828}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 638th -illion number.
In the long scale, \(10^{1917}\) is called novendecitrecentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{1917}\) (exact) 	\(1\times10^{1917}\) (exact)
Arrow notation 	\(10\uparrow 1917\) (exact) 	\(10\uparrow 1917\) (exact)
Steinhaus-Moser Notation 	677[3] 	678[3]
Chained arrow notation 	\(10\rightarrow 1917\) (exact) 	\(10\rightarrow 1917\) (exact)
Taro's multivariable Ackermann function	A(3,6365) 	A(3,6366)
BEAF & Bird's array notation 	{10,1917} (exact) 	{10,1917} (exact)
Hyper-E notation 	E1917 (exact) 	E1917 (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)(677) 	m(1)(678)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6355)\) 	\(f_2(6356)\)
Hardy hierarchy 	\(H_{\omega^2}(6355)\) 	\(H_{\omega^2}(6356)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3+\omega^2 9+\omega+7}}(10)\) (exact)	\(g_{\omega^{\omega^3+\omega^2 9+\omega+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{3828}\) (exact) 	\(1\times10^{3828}\) (exact)
Arrow notation 	\(10\uparrow 3828\) (exact) 	\(10\uparrow 3828\) (exact)
Steinhaus-Moser Notation 	1237[3] 	1238[3]
Chained arrow notation 	\(10\rightarrow 3828\) (exact) 	\(10\rightarrow 3828\) (exact)
Taro's multivariable Ackermann function	A(3,12713) 	A(3,12714)
BEAF & Bird's array notation 	{10,3828} (exact) 	{10,3828} (exact)
Hyper-E notation 	E3828 (exact) 	E3828 (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)(1237) 	m(1)(1238)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(12702)\) 	\(f_2(12703)\)
Hardy hierarchy 	\(H_{\omega^2}(12702)\) 	\(H_{\omega^2}(12703)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 3+\omega^2 8+\omega 2+8}}(10)\) (exact)	\(g_{\omega^{\omega^3 3+\omega^2 8+\omega 2+8}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers