12531637832 has 16 divisors (see below), whose sum is σ = 26853509760. Its totient is φ = 5370701904.

The previous prime is 12531637813. The next prime is 12531637889. The reversal of 12531637832 is 23873613521.

It is a self number, because there is not a number n which added to its sum of digits gives 12531637832.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111889568 + ... + 111889679.

It is an arithmetic number, because the mean of its divisors is an integer number (1678344360).

Almost surely, 2^12531637832 is an apocalyptic number.

It is an amenable number.

12531637832 is an abundant number, since it is smaller than the sum of its proper divisors (14321871928).

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

12531637832 is a wasteful number, since it uses less digits than its factorization.

12531637832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223779260 (or 223779256 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The spelling of 12531637832 in words is "twelve billion, five hundred thirty-one million, six hundred thirty-seven thousand, eight hundred thirty-two".