13979138395 has 32 divisors (see below), whose sum is σ = 17817408000. Its totient is φ = 10510187520.

The previous prime is 13979138377. The next prime is 13979138423. The reversal of 13979138395 is 59383197931.

13979138395 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-13979138395 is a prime.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 2845201 + ... + 2850109.

It is an arithmetic number, because the mean of its divisors is an integer number (556794000).

Almost surely, 2^13979138395 is an apocalyptic number.

13979138395 is a deficient number, since it is larger than the sum of its proper divisors (3838269605).

13979138395 is a wasteful number, since it uses less digits than its factorization.

13979138395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463.

The product of its digits is 5511240, while the sum is 58.

The spelling of 13979138395 in words is "thirteen billion, nine hundred seventy-nine million, one hundred thirty-eight thousand, three hundred ninety-five".