13231405979968 has 56 divisors (see below), whose sum is σ = 28675648337184. Its totient is φ = 6007417382400.

The previous prime is 13231405979947. The next prime is 13231405979993. The reversal of 13231405979968 is 86997950413231.

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, 10097878 + ... + 11332693.

It is a 1-persistent number, because it is pandigital, but 2⋅13231405979968 = 26462811959936 is not.

Almost surely, 2^{13231405979968} is an apocalyptic number.

It is an amenable number.

13231405979968 is an abundant number, since it is smaller than the sum of its proper divisors (15444242357216).

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

13231405979968 is a wasteful number, since it uses less digits than its factorization.

13231405979968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21431471 (or 21431461 counting only the distinct ones).

The product of its (nonzero) digits is 88179840, while the sum is 67.

The spelling of 13231405979968 in words is "thirteen trillion, two hundred thirty-one billion, four hundred five million, nine hundred seventy-nine thousand, nine hundred sixty-eight".