86171059980 has 96 divisors (see below), whose sum is σ = 268149235200. Its totient is φ = 22973678784.

The previous prime is 86171059951. The next prime is 86171060029. The reversal of 86171059980 is 8995017168.

86171059980 is a `hidden beast` number, since 8 + 617 + 10 + 5 + 9 + 9 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2716089 + ... + 2747631.

It is an arithmetic number, because the mean of its divisors is an integer number (2793221200).

Almost surely, 2^86171059980 is an apocalyptic number.

It is an amenable number.

86171059980 is an abundant number, since it is smaller than the sum of its proper divisors (181978175220).

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

86171059980 is a wasteful number, since it uses less digits than its factorization.

86171059980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36620 (or 36612 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 54.

The spelling of 86171059980 in words is "eighty-six billion, one hundred seventy-one million, fifty-nine thousand, nine hundred eighty".