13521373564 has 12 divisors (see below), whose sum is σ = 24212692504. Its totient is φ = 6603461424.

The previous prime is 13521373543. The next prime is 13521373577. The reversal of 13521373564 is 46537312531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39306147 + ... + 39306490.

Almost surely, 2^13521373564 is an apocalyptic number.

It is an amenable number.

13521373564 is a deficient number, since it is larger than the sum of its proper divisors (10691318940).

13521373564 is a wasteful number, since it uses less digits than its factorization.

13521373564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78612684 (or 78612682 counting only the distinct ones).

The product of its digits is 226800, while the sum is 40.

The spelling of 13521373564 in words is "thirteen billion, five hundred twenty-one million, three hundred seventy-three thousand, five hundred sixty-four".