13899017556 has 48 divisors (see below), whose sum is σ = 38154170880. Its totient is φ = 4360475520.

The previous prime is 13899017537. The next prime is 13899017563. The reversal of 13899017556 is 65571099831.

13899017556 is a `hidden beast` number, since 1 + 3 + 89 + 9 + 0 + 1 + 7 + 556 = 666.

13899017556 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3783300 + ... + 3786971.

It is an arithmetic number, because the mean of its divisors is an integer number (794878560).

Almost surely, 2^13899017556 is an apocalyptic number.

It is an amenable number.

13899017556 is an abundant number, since it is smaller than the sum of its proper divisors (24255153324).

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

13899017556 is a wasteful number, since it uses less digits than its factorization.

13899017556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7570301 (or 7570293 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 54.

The spelling of 13899017556 in words is "thirteen billion, eight hundred ninety-nine million, seventeen thousand, five hundred fifty-six".