12518581008 has 40 divisors (see below), whose sum is σ = 32594326528. Its totient is φ = 4140001152.

The previous prime is 12518580959. The next prime is 12518581051. The reversal of 12518581008 is 80018581521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1020691 + ... + 1032882.

Almost surely, 2^12518581008 is an apocalyptic number.

It is an amenable number.

12518581008 is an abundant number, since it is smaller than the sum of its proper divisors (20075745520).

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

12518581008 is a wasteful number, since it uses less digits than its factorization.

12518581008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2053711 (or 2053705 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 39.

The spelling of 12518581008 in words is "twelve billion, five hundred eighteen million, five hundred eighty-one thousand, eight".