Septemoctogintasescentillion

A septemoctogintasescentillion is equal to \(10^{2064}\) in the short scale and \(10^{4122}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 687th -illion number.
In the long scale, \(10^{2064}\) is called quattuorquadragintatrecentillion.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2064}\) (exact) 	\(1\times10^{2064}\) (exact)
Arrow notation 	\(10\uparrow 2064\) (exact) 	\(10\uparrow 2064\) (exact)
Steinhaus-Moser Notation 	722[3] 	723[3]
Chained arrow notation 	\(10\rightarrow 2064\) (exact) 	\(10\rightarrow 2064\) (exact)
Taro's multivariable Ackermann function	A(3,6853) 	A(3,6854)
BEAF & Bird's array notation 	{10,2064} (exact) 	{10,2064} (exact)
Hyper-E notation 	E2064 (exact) 	E2064 (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)(722) 	m(1)(723)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(6843)\) 	\(f_2(6844)\)
Hardy hierarchy 	\(H_{\omega^2}(6843)\) 	\(H_{\omega^2}(6844)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega 6+4}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega 6+4}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{4122}\) (exact) 	\(1\times10^{4122}\) (exact)
Arrow notation 	\(10\uparrow 4122\) (exact) 	\(10\uparrow 4122\) (exact)
Steinhaus-Moser Notation 	1320[3] 	1321[3]
Chained arrow notation 	\(10\rightarrow 4122\) (exact) 	\(10\rightarrow 4122\) (exact)
Taro's multivariable Ackermann function	A(3,13689) 	A(3,13690)
BEAF & Bird's array notation 	{10,4122} (exact) 	{10,4122} (exact)
Hyper-E notation 	E4122 (exact) 	E4122 (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)(1320) 	m(1)(1321)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(13679)\) 	\(f_2(13680)\)
Hardy hierarchy 	\(H_{\omega^2}(13679)\) 	\(H_{\omega^2}(13680)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 4+\omega^2+\omega 2+2}}(10)\) (exact)	\(g_{\omega^{\omega^3 4+\omega^2+\omega 2+2}}(10)\) (exact)
== Sources ==
== See also ==
Category:Numbers
Category:Class 2
Category:Illion
Category:Numbers with 1000 to 1000000 digits
Category:Tier 1 -illion numbers