12637568825 has 12 divisors (see below), whose sum is σ = 17909240640. Its totient is φ = 8665761360.

The previous prime is 12637568809. The next prime is 12637568831. The reversal of 12637568825 is 52886573621.

It is not a de Polignac number, because 12637568825 - 2⁴ = 12637568809 is a prime.

It is a super-2 number, since 2×12637568825² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36107165 + ... + 36107514.

It is an arithmetic number, because the mean of its divisors is an integer number (1492436720).

Almost surely, 2^12637568825 is an apocalyptic number.

It is an amenable number.

12637568825 is a deficient number, since it is larger than the sum of its proper divisors (5271671815).

12637568825 is an equidigital number, since it uses as much as digits as its factorization.

12637568825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72214696 (or 72214691 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 53.

The spelling of 12637568825 in words is "twelve billion, six hundred thirty-seven million, five hundred sixty-eight thousand, eight hundred twenty-five".