12637965825 has 72 divisors (see below), whose sum is σ = 24434953920. Its totient is φ = 6224803200.

The previous prime is 12637965797. The next prime is 12637965833. The reversal of 12637965825 is 52856973621.

12637965825 is a `hidden beast` number, since 1 + 26 + 37 + 9 + 6 + 582 + 5 = 666.

It is not a de Polignac number, because 12637965825 - 2⁵ = 12637965793 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 107970 + ... + 192180.

It is an arithmetic number, because the mean of its divisors is an integer number (339374360).

Almost surely, 2^12637965825 is an apocalyptic number.

12637965825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12637965825 is a deficient number, since it is larger than the sum of its proper divisors (11796988095).

12637965825 is a wasteful number, since it uses less digits than its factorization.

12637965825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84279 (or 84271 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

It can be divided in two parts, 1263796 and 5825, that added together give a palindrome (1269621).

The spelling of 12637965825 in words is "twelve billion, six hundred thirty-seven million, nine hundred sixty-five thousand, eight hundred twenty-five".