12513045928 has 16 divisors (see below), whose sum is σ = 23496832980. Its totient is φ = 6247223808.

The previous prime is 12513045917. The next prime is 12513045953. The reversal of 12513045928 is 82954031521.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11693827044 + 819218884 = 108138^2 + 28622^2 .

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, 1156675 + ... + 1167442.

Almost surely, 2^12513045928 is an apocalyptic number.

It is an amenable number.

12513045928 is a deficient number, since it is larger than the sum of its proper divisors (10983787052).

12513045928 is a wasteful number, since it uses less digits than its factorization.

12513045928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324796 (or 2324792 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The spelling of 12513045928 in words is "twelve billion, five hundred thirteen million, forty-five thousand, nine hundred twenty-eight".