86697180944 has 20 divisors (see below), whose sum is σ = 183246314640. Its totient is φ = 39407809440.

The previous prime is 86697180923. The next prime is 86697180953. The reversal of 86697180944 is 44908179668.

It is a super-2 number, since 2×86697180944² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 246298634 + ... + 246298985.

It is an arithmetic number, because the mean of its divisors is an integer number (9162315732).

Almost surely, 2^86697180944 is an apocalyptic number.

It is an amenable number.

86697180944 is an abundant number, since it is smaller than the sum of its proper divisors (96549133696).

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

86697180944 is a wasteful number, since it uses less digits than its factorization.

86697180944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492597638 (or 492597632 counting only the distinct ones).

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 86697180944 in words is "eighty-six billion, six hundred ninety-seven million, one hundred eighty thousand, nine hundred forty-four".