13289731664 has 20 divisors (see below), whose sum is σ = 28089660480. Its totient is φ = 6040787040.

The previous prime is 13289731643. The next prime is 13289731723. The reversal of 13289731664 is 46613798231.

It is a super-2 number, since 2×13289731664² (a number of 21 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

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, 37754744 + ... + 37755095.

It is an arithmetic number, because the mean of its divisors is an integer number (1404483024).

Almost surely, 2^13289731664 is an apocalyptic number.

It is an amenable number.

13289731664 is an abundant number, since it is smaller than the sum of its proper divisors (14799928816).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13289731664 is a wasteful number, since it uses less digits than its factorization.

13289731664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75509858 (or 75509852 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 50.

The spelling of 13289731664 in words is "thirteen billion, two hundred eighty-nine million, seven hundred thirty-one thousand, six hundred sixty-four".