13688656804 has 12 divisors (see below), whose sum is σ = 24179030064. Its totient is φ = 6780362504.

The previous prime is 13688656801. The next prime is 13688656841. The reversal of 13688656804 is 40865688631.

It is not an unprimeable number, because it can be changed into a prime (13688656801) 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, 15990994 + ... + 15991849.

It is an arithmetic number, because the mean of its divisors is an integer number (2014919172).

Almost surely, 2^13688656804 is an apocalyptic number.

It is an amenable number.

13688656804 is a deficient number, since it is larger than the sum of its proper divisors (10490373260).

13688656804 is a wasteful number, since it uses less digits than its factorization.

13688656804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31982954 (or 31982952 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 55.

The spelling of 13688656804 in words is "thirteen billion, six hundred eighty-eight million, six hundred fifty-six thousand, eight hundred four".