13144915938 has 32 divisors (see below), whose sum is σ = 32776934400. Its totient is φ = 3414263760.

The previous prime is 13144915919. The next prime is 13144916009. The reversal of 13144915938 is 83951944131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14225638 + ... + 14226561.

It is an arithmetic number, because the mean of its divisors is an integer number (1024279200).

Almost surely, 2^13144915938 is an apocalyptic number.

13144915938 is an abundant number, since it is smaller than the sum of its proper divisors (19632018462).

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

13144915938 is a wasteful number, since it uses less digits than its factorization.

13144915938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28452222.

The product of its digits is 466560, while the sum is 48.

The spelling of 13144915938 in words is "thirteen billion, one hundred forty-four million, nine hundred fifteen thousand, nine hundred thirty-eight".