118613231988 has 48 divisors (see below), whose sum is σ = 277223881536. Its totient is φ = 39472139520.

The previous prime is 118613231953. The next prime is 118613232011. The reversal of 118613231988 is 889132316811.

It is a self number, because there is not a number n which added to its sum of digits gives 118613231988.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23620918 + ... + 23625938.

It is an arithmetic number, because the mean of its divisors is an integer number (5775497532).

Almost surely, 2^118613231988 is an apocalyptic number.

It is an amenable number.

118613231988 is an abundant number, since it is smaller than the sum of its proper divisors (158610649548).

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

118613231988 is a wasteful number, since it uses less digits than its factorization.

118613231988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904 (or 7902 counting only the distinct ones).

The product of its digits is 497664, while the sum is 51.

The spelling of 118613231988 in words is "one hundred eighteen billion, six hundred thirteen million, two hundred thirty-one thousand, nine hundred eighty-eight".