13231926918 has 48 divisors (see below), whose sum is σ = 33894600480. Its totient is φ = 3650185728.

The previous prime is 13231926913. The next prime is 13231926937. The reversal of 13231926918 is 81962913231.

It is a happy number.

13231926918 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231926913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1806955 + ... + 1814262.

It is an arithmetic number, because the mean of its divisors is an integer number (706137510).

Almost surely, 2^13231926918 is an apocalyptic number.

13231926918 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13231926918 is an abundant number, since it is smaller than the sum of its proper divisors (20662673562).

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

13231926918 is a wasteful number, since it uses less digits than its factorization.

13231926918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3621261 (or 3621258 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The spelling of 13231926918 in words is "thirteen billion, two hundred thirty-one million, nine hundred twenty-six thousand, nine hundred eighteen".