84831908136 has 32 divisors (see below), whose sum is σ = 221300631360. Its totient is φ = 27047854592.

The previous prime is 84831908107. The next prime is 84831908167. The reversal of 84831908136 is 63180913848.

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, 76839945 + ... + 76841048.

It is an arithmetic number, because the mean of its divisors is an integer number (6915644730).

Almost surely, 2^84831908136 is an apocalyptic number.

It is an amenable number.

84831908136 is an abundant number, since it is smaller than the sum of its proper divisors (136468723224).

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

84831908136 is a wasteful number, since it uses less digits than its factorization.

84831908136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153681025 (or 153681021 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 51.

The spelling of 84831908136 in words is "eighty-four billion, eight hundred thirty-one million, nine hundred eight thousand, one hundred thirty-six".