86979618132 has 96 divisors (see below), whose sum is σ = 223661813760. Its totient is φ = 26089015680.

The previous prime is 86979618101. The next prime is 86979618137. The reversal of 86979618132 is 23181697968.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86979618137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17594053 + ... + 17598995.

It is an arithmetic number, because the mean of its divisors is an integer number (2329810560).

Almost surely, 2^86979618132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86979618132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111830906880).

86979618132 is an abundant number, since it is smaller than the sum of its proper divisors (136682195628).

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

86979618132 is a wasteful number, since it uses less digits than its factorization.

86979618132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293 (or 6291 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The spelling of 86979618132 in words is "eighty-six billion, nine hundred seventy-nine million, six hundred eighteen thousand, one hundred thirty-two".