8263139382500 has 60 divisors (see below), whose sum is σ = 19132764664860. Its totient is φ = 3110828928000.

The previous prime is 8263139382457. The next prime is 8263139382541. The reversal of 8263139382500 is 52839313628.

It can be written as a sum of positive squares in 10 ways, for example, as 6708649091236 + 1554490291264 = 2590106^2 + 1246792^2 .

It is a Harshad number since it is a multiple of its sum of digits (50).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 97170905 + ... + 97255904.

It is an arithmetic number, because the mean of its divisors is an integer number (318879411081).

Almost surely, 2^{8263139382500} is an apocalyptic number.

It is an amenable number.

8263139382500 is an abundant number, since it is smaller than the sum of its proper divisors (10869625282360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8263139382500 is a wasteful number, since it uses less digits than its factorization.

8263139382500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194426850 (or 194426833 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 8263139382500 in words is "eight trillion, two hundred sixty-three billion, one hundred thirty-nine million, three hundred eighty-two thousand, five hundred".