12638765374 has 24 divisors (see below), whose sum is σ = 19886379912. Its totient is φ = 6023849040.

The previous prime is 12638765369. The next prime is 12638765431. The reversal of 12638765374 is 47356783621.

It is a congruent number.

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, 289609 + ... + 330379.

It is an arithmetic number, because the mean of its divisors is an integer number (828599163).

Almost surely, 2^12638765374 is an apocalyptic number.

12638765374 is a deficient number, since it is larger than the sum of its proper divisors (7247614538).

12638765374 is a wasteful number, since it uses less digits than its factorization.

12638765374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41112 (or 41089 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 52.

The spelling of 12638765374 in words is "twelve billion, six hundred thirty-eight million, seven hundred sixty-five thousand, three hundred seventy-four".