Seseptuagintaoctingentillion

A seseptuagintaoctingentillion is equal to \(10^{2631}\) in the short scale and \(10^{5256}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 876th -illion number.
In the long scale, \(10^{2631}\) is called octotrigintaquadringentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2631}\) (exact) 	\(1\times10^{2631}\) (exact)
Arrow notation 	\(10\uparrow 2631\) (exact) 	\(10\uparrow 2631\) (exact)
Steinhaus-Moser Notation 	891[3] 	892[3]
Chained arrow notation 	\(10\rightarrow 2631\) (exact) 	\(10\rightarrow 2631\) (exact)
Taro's multivariable Ackermann function	A(3,8736) 	A(3,8737)
BEAF & Bird's array notation 	{10,2631} (exact) 	{10,2631} (exact)
Hyper-E notation 	E2631 (exact) 	E2631 (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)(891) 	m(1)(892)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(8726)\) 	\(f_2(8727)\)
Hardy hierarchy 	\(H_{\omega^2}(8726)\) 	\(H_{\omega^2}(8727)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 6+\omega 3+1}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 6+\omega 3+1}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{5256}\) (exact) 	\(1\times10^{5256}\) (exact)
Arrow notation 	\(10\uparrow 5256\) (exact) 	\(10\uparrow 5256\) (exact)
Steinhaus-Moser Notation 	1635[3] 	1636[3]
Chained arrow notation 	\(10\rightarrow 5256\) (exact) 	\(10\rightarrow 5256\) (exact)
Taro's multivariable Ackermann function	A(3,17457) 	A(3,17458)
BEAF & Bird's array notation 	{10,5256} (exact) 	{10,5256} (exact)
Hyper-E notation 	E5256 (exact) 	E5256 (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)(1635) 	m(1)(1636)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(17445)\) 	\(f_2(17446)\)
Hardy hierarchy 	\(H_{\omega^2}(17445)\) 	\(H_{\omega^2}(17446)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 5+\omega^2 2+\omega 5+6}}(10)\) (exact)	\(g_{\omega^{\omega^3 5+\omega^2 2+\omega 5+6}}(10)\) (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