13891202556 has 96 divisors (see below), whose sum is σ = 42537707520. Its totient is φ = 3418200000.

The previous prime is 13891202539. The next prime is 13891202581. The reversal of 13891202556 is 65520219831.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 378070 + ... + 413181.

It is an arithmetic number, because the mean of its divisors is an integer number (443101120).

Almost surely, 2^13891202556 is an apocalyptic number.

It is an amenable number.

13891202556 is an abundant number, since it is smaller than the sum of its proper divisors (28646504964).

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

13891202556 is a wasteful number, since it uses less digits than its factorization.

13891202556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791295 (or 791293 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 42.

The spelling of 13891202556 in words is "thirteen billion, eight hundred ninety-one million, two hundred two thousand, five hundred fifty-six".