13856872842 has 24 divisors (see below), whose sum is σ = 30025448544. Its totient is φ = 4618615464.

The previous prime is 13856872831. The next prime is 13856872871. The reversal of 13856872842 is 24827865831.

13856872842 is a `hidden beast` number, since 1 + 3 + 8 + 568 + 72 + 8 + 4 + 2 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377433 + ... + 412515.

It is an arithmetic number, because the mean of its divisors is an integer number (1251060356).

Almost surely, 2^13856872842 is an apocalyptic number.

13856872842 is an abundant number, since it is smaller than the sum of its proper divisors (16168575702).

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

13856872842 is a wasteful number, since it uses less digits than its factorization.

13856872842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57034 (or 57031 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 13856872842 in words is "thirteen billion, eight hundred fifty-six million, eight hundred seventy-two thousand, eight hundred forty-two".