12563638504 has 32 divisors (see below), whose sum is σ = 23728616640. Its totient is φ = 6236064000.

The previous prime is 12563638481. The next prime is 12563638511. The reversal of 12563638504 is 40583636521.

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 7 ways as a sum of consecutive naturals, for example, 2658864 + ... + 2663584.

It is an arithmetic number, because the mean of its divisors is an integer number (741519270).

Almost surely, 2^12563638504 is an apocalyptic number.

It is an amenable number.

12563638504 is a deficient number, since it is larger than the sum of its proper divisors (11164978136).

12563638504 is a wasteful number, since it uses less digits than its factorization.

12563638504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7081 (or 7077 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 43.

The spelling of 12563638504 in words is "twelve billion, five hundred sixty-three million, six hundred thirty-eight thousand, five hundred four".