12637157525 has 12 divisors (see below), whose sum is σ = 15813840900. Its totient is φ = 10016974080.

The previous prime is 12637157503. The next prime is 12637157551. The reversal of 12637157525 is 52575173621.

It can be written as a sum of positive squares in 6 ways, for example, as 1852958116 + 10784199409 = 43046^2 + 103847^2 .

It is not a de Polignac number, because 12637157525 - 2⁶ = 12637157461 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2316020 + ... + 2321469.

It is an arithmetic number, because the mean of its divisors is an integer number (1317820075).

Almost surely, 2^12637157525 is an apocalyptic number.

It is an amenable number.

12637157525 is a deficient number, since it is larger than the sum of its proper divisors (3176683375).

12637157525 is a wasteful number, since it uses less digits than its factorization.

12637157525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4637608 (or 4637603 counting only the distinct ones).

The product of its digits is 441000, while the sum is 44.

The spelling of 12637157525 in words is "twelve billion, six hundred thirty-seven million, one hundred fifty-seven thousand, five hundred twenty-five".