111888856799 has 4 divisors (see below), whose sum is σ = 111891729000. Its totient is φ = 111885984600.

The previous prime is 111888856777. The next prime is 111888856801. The reversal of 111888856799 is 997658888111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 111888856799 - 2³⁶ = 43169380063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111888856199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1376852 + ... + 1455849.

It is an arithmetic number, because the mean of its divisors is an integer number (27972932250).

Almost surely, 2^111888856799 is an apocalyptic number.

111888856799 is a deficient number, since it is larger than the sum of its proper divisors (2872201).

111888856799 is an equidigital number, since it uses as much as digits as its factorization.

111888856799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2872200.

The product of its digits is 69672960, while the sum is 71.

The spelling of 111888856799 in words is "one hundred eleven billion, eight hundred eighty-eight million, eight hundred fifty-six thousand, seven hundred ninety-nine".