86909932975 has 18 divisors (see below), whose sum is σ = 111356886840. Its totient is φ = 67285090800.

The previous prime is 86909932969. The next prime is 86909932979. The reversal of 86909932975 is 57923990968.

It is not a de Polignac number, because 86909932975 - 2⁹ = 86909932463 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86909932975.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86909932979) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1784715 + ... + 1832764.

Almost surely, 2^86909932975 is an apocalyptic number.

86909932975 is a deficient number, since it is larger than the sum of its proper divisors (24446953865).

86909932975 is a wasteful number, since it uses less digits than its factorization.

86909932975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617551 (or 3617515 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 67.

It can be divided in two parts, 8690993 and 2975, that added together give a palindrome (8693968).

The spelling of 86909932975 in words is "eighty-six billion, nine hundred nine million, nine hundred thirty-two thousand, nine hundred seventy-five".