13891376542 has 16 divisors (see below), whose sum is σ = 21354000192. Its totient is φ = 6773514880.

The previous prime is 13891376537. The next prime is 13891376563. The reversal of 13891376542 is 24567319831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175218 + ... + 241834.

It is an arithmetic number, because the mean of its divisors is an integer number (1334625012).

Almost surely, 2^13891376542 is an apocalyptic number.

13891376542 is a deficient number, since it is larger than the sum of its proper divisors (7462623650).

13891376542 is a wasteful number, since it uses less digits than its factorization.

13891376542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69203.

The product of its digits is 1088640, while the sum is 49.

The spelling of 13891376542 in words is "thirteen billion, eight hundred ninety-one million, three hundred seventy-six thousand, five hundred forty-two".