13994323564 has 24 divisors (see below), whose sum is σ = 26691683760. Its totient is φ = 6381098304.

The previous prime is 13994323561. The next prime is 13994323591. The reversal of 13994323564 is 46532349931.

It is not an unprimeable number, because it can be changed into a prime (13994323561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616899 + ... + 1625530.

It is an arithmetic number, because the mean of its divisors is an integer number (1112153490).

Almost surely, 2^13994323564 is an apocalyptic number.

It is an amenable number.

13994323564 is a deficient number, since it is larger than the sum of its proper divisors (12697360196).

13994323564 is a wasteful number, since it uses less digits than its factorization.

13994323564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242529 (or 3242527 counting only the distinct ones).

The product of its digits is 2099520, while the sum is 49.

The spelling of 13994323564 in words is "thirteen billion, nine hundred ninety-four million, three hundred twenty-three thousand, five hundred sixty-four".