Octovigintioctingentillion

An octovigintioctingentillion is equal to \(10^{2487}\) in the short scale and \(10^{4968}\) in the long scale by the and 's naming systemConway and Guy. (1995) "The book of Numbers" Copernicus as it is the 828th -illion number.
In the long scale, \(10^{2487}\) is called quattuordeciquadringentilliard.
==Approximations==
For the short scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{2487}\) (exact) 	\(1\times10^{2487}\) (exact)
Arrow notation 	\(10\uparrow 2487\) (exact) 	\(10\uparrow 2487\) (exact)
Steinhaus-Moser Notation 	849[3] 	850[3]
Chained arrow notation 	\(10\rightarrow 2487\) (exact) 	\(10\rightarrow 2487\) (exact)
Taro's multivariable Ackermann function	A(3,8258) 	A(3,8259)
BEAF & Bird's array notation 	{10,2487} (exact) 	{10,2487} (exact)
Hyper-E notation 	E2487 (exact) 	E2487 (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)(849) 	m(1)(850)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(8248)\) 	\(f_2(8249)\)
Hardy hierarchy 	\(H_{\omega^2}(8248)\) 	\(H_{\omega^2}(8249)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 2+\omega^2 4+\omega 8+7}}(10)\) (exact)	\(g_{\omega^{\omega^3 2+\omega^2 4+\omega 8+7}}(10)\) (exact)
For the long scale:
Notation 	Lower bound 	Upper bound
Scientific notation 	\(1\times10^{4968}\) (exact) 	\(1\times10^{4968}\) (exact)
Arrow notation 	\(10\uparrow 4968\) (exact) 	\(10\uparrow 4968\) (exact)
Steinhaus-Moser Notation 	1556[3] 	1557[3]
Chained arrow notation 	\(10\rightarrow 4968\) (exact) 	\(10\rightarrow 4968\) (exact)
Taro's multivariable Ackermann function	A(3,16500) 	A(3,16501)
BEAF & Bird's array notation 	{10,4968} (exact) 	{10,4968} (exact)
Hyper-E notation 	E4968 (exact) 	E4968 (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)(1556) 	m(1)(1557)
Bashicu matrix system 	(0)(1)[3] 	(0)(1)[4]
Fast-growing hierarchy 	\(f_2(16489)\) 	\(f_2(16490)\)
Hardy hierarchy 	\(H_{\omega^2}(16489)\) 	\(H_{\omega^2}(16490)\)
Slow-growing hierarchy 	\(g_{\omega^{\omega^3 4+\omega^2 9+\omega 6+8}}(10)\) (exact)	\(g_{\omega^{\omega^3 4+\omega^2 9+\omega 6+8}}(10)\) (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