86814571984 has 120 divisors (see below), whose sum is σ = 207275483520. Its totient is φ = 34439581440.

The previous prime is 86814571979. The next prime is 86814572041. The reversal of 86814571984 is 48917541868.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2458002 + ... + 2493070.

It is an arithmetic number, because the mean of its divisors is an integer number (1727295696).

Almost surely, 2^86814571984 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 86814571984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103637741760).

86814571984 is an abundant number, since it is smaller than the sum of its proper divisors (120460911536).

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

86814571984 is a wasteful number, since it uses less digits than its factorization.

86814571984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35169 (or 35132 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 61.

The spelling of 86814571984 in words is "eighty-six billion, eight hundred fourteen million, five hundred seventy-one thousand, nine hundred eighty-four".