13879391442534 has 24 divisors (see below), whose sum is σ = 30075908918952. Its totient is φ = 4625864717760.

The previous prime is 13879391442533. The next prime is 13879391442547. The reversal of 13879391442534 is 43524419397831.

13879391442534 is a `hidden beast` number, since 1 + 3 + 8 + 7 + 9 + 3 + 91 + 4 + 4 + 2 + 534 = 666.

13879391442534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13879391442533) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49781827 + ... + 50059854.

It is an arithmetic number, because the mean of its divisors is an integer number (1253162871623).

Almost surely, 2^{13879391442534} is an apocalyptic number.

13879391442534 is an abundant number, since it is smaller than the sum of its proper divisors (16196517476418).

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

13879391442534 is a wasteful number, since it uses less digits than its factorization.

13879391442534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99849412 (or 99849409 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

The spelling of 13879391442534 in words is "thirteen trillion, eight hundred seventy-nine billion, three hundred ninety-one million, four hundred forty-two thousand, five hundred thirty-four".