86257816612 has 24 divisors (see below), whose sum is σ = 164713036320. Its totient is φ = 39198807360.

The previous prime is 86257816583. The next prime is 86257816643. The reversal of 86257816612 is 21661875268.

It is a happy number.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 86257816612.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42753 + ... + 417544.

It is an arithmetic number, because the mean of its divisors is an integer number (6863043180).

Almost surely, 2^86257816612 is an apocalyptic number.

It is an amenable number.

86257816612 is a deficient number, since it is larger than the sum of its proper divisors (78455219708).

86257816612 is a wasteful number, since it uses less digits than its factorization.

86257816612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464571 (or 464569 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The spelling of 86257816612 in words is "eighty-six billion, two hundred fifty-seven million, eight hundred sixteen thousand, six hundred twelve".