13920972842 has 16 divisors (see below), whose sum is σ = 23997850560. Its totient is φ = 5932799808.

The previous prime is 13920972799. The next prime is 13920972851. The reversal of 13920972842 is 24827902931.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2775023 + ... + 2780034.

It is an arithmetic number, because the mean of its divisors is an integer number (1499865660).

Almost surely, 2^13920972842 is an apocalyptic number.

13920972842 is a deficient number, since it is larger than the sum of its proper divisors (10076877718).

13920972842 is a wasteful number, since it uses less digits than its factorization.

13920972842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555245.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 13920972842 in words is "thirteen billion, nine hundred twenty million, nine hundred seventy-two thousand, eight hundred forty-two".