12534510864 has 20 divisors (see below), whose sum is σ = 32380819856. Its totient is φ = 4178170272.

The previous prime is 12534510847. The next prime is 12534510913. The reversal of 12534510864 is 46801543521.

12534510864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12534510864² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130567774 + ... + 130567869.

Almost surely, 2^12534510864 is an apocalyptic number.

It is an amenable number.

12534510864 is an abundant number, since it is smaller than the sum of its proper divisors (19846308992).

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

12534510864 is a wasteful number, since it uses less digits than its factorization.

12534510864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261135654 (or 261135648 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 12534510864 in words is "twelve billion, five hundred thirty-four million, five hundred ten thousand, eight hundred sixty-four".