118021991928 has 32 divisors (see below), whose sum is σ = 295475927760. Its totient is φ = 39284537600.

The previous prime is 118021991861. The next prime is 118021991947. The reversal of 118021991928 is 829199120811.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3490725 + ... + 3524372.

Almost surely, 2^118021991928 is an apocalyptic number.

It is an amenable number.

118021991928 is an abundant number, since it is smaller than the sum of its proper divisors (177453935832).

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

118021991928 is a wasteful number, since it uses less digits than its factorization.

118021991928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7015807 (or 7015803 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 51.

The spelling of 118021991928 in words is "one hundred eighteen billion, twenty-one million, nine hundred ninety-one thousand, nine hundred twenty-eight".