13688338792 has 16 divisors (see below), whose sum is σ = 25741799460. Its totient is φ = 6823858944.

The previous prime is 13688338771. The next prime is 13688338793. The reversal of 13688338792 is 29783388631.

It can be written as a sum of positive squares in 2 ways, for example, as 13186847556 + 501491236 = 114834^2 + 22394^2 .

It is not an unprimeable number, because it can be changed into a prime (13688338793) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2535943 + ... + 2541334.

Almost surely, 2^13688338792 is an apocalyptic number.

It is an amenable number.

13688338792 is a deficient number, since it is larger than the sum of its proper divisors (12053460668).

13688338792 is a wasteful number, since it uses less digits than its factorization.

13688338792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5077620 (or 5077616 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 58.

The spelling of 13688338792 in words is "thirteen billion, six hundred eighty-eight million, three hundred thirty-eight thousand, seven hundred ninety-two".