13688844686 has 16 divisors (see below), whose sum is σ = 23717571120. Its totient is φ = 5856190080.

The previous prime is 13688844677. The next prime is 13688844691. The reversal of 13688844686 is 68644888631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18300221 + ... + 18300968.

It is an arithmetic number, because the mean of its divisors is an integer number (1482348195).

Almost surely, 2^13688844686 is an apocalyptic number.

13688844686 is a deficient number, since it is larger than the sum of its proper divisors (10028726434).

13688844686 is a wasteful number, since it uses less digits than its factorization.

13688844686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36601219.

The product of its digits is 42467328, while the sum is 62.

The spelling of 13688844686 in words is "thirteen billion, six hundred eighty-eight million, eight hundred forty-four thousand, six hundred eighty-six".