118891117842 has 32 divisors (see below), whose sum is σ = 278379206784. Its totient is φ = 33140380800.

The previous prime is 118891117817. The next prime is 118891117903. The reversal of 118891117842 is 248711198811.

118891117842 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 34519509 + ... + 34522952.

It is an arithmetic number, because the mean of its divisors is an integer number (8699350212).

Almost surely, 2^118891117842 is an apocalyptic number.

118891117842 is an abundant number, since it is smaller than the sum of its proper divisors (159488088942).

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

118891117842 is a wasteful number, since it uses less digits than its factorization.

118891117842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69042514.

The product of its digits is 258048, while the sum is 51.

The spelling of 118891117842 in words is "one hundred eighteen billion, eight hundred ninety-one million, one hundred seventeen thousand, eight hundred forty-two".