84118031856 has 30 divisors (see below), whose sum is σ = 235413659000. Its totient is φ = 28039343904.

The previous prime is 84118031843. The next prime is 84118031861. The reversal of 84118031856 is 65813081148.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 292076356 + ... + 292076643.

Almost surely, 2^84118031856 is an apocalyptic number.

It is an amenable number.

84118031856 is an abundant number, since it is smaller than the sum of its proper divisors (151295627144).

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

84118031856 is a wasteful number, since it uses less digits than its factorization.

84118031856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584153013 (or 584153004 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The spelling of 84118031856 in words is "eighty-four billion, one hundred eighteen million, thirty-one thousand, eight hundred fifty-six".