86873842566 has 48 divisors (see below), whose sum is σ = 217707969024. Its totient is φ = 24522045552.

The previous prime is 86873842529. The next prime is 86873842577. The reversal of 86873842566 is 66524837868.

86873842566 is a `hidden beast` number, since 8 + 68 + 7 + 3 + 8 + 4 + 2 + 566 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

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, 4143006 + ... + 4163921.

It is an arithmetic number, because the mean of its divisors is an integer number (4535582688).

Almost surely, 2^86873842566 is an apocalyptic number.

86873842566 is an abundant number, since it is smaller than the sum of its proper divisors (130834126458).

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

86873842566 is a wasteful number, since it uses less digits than its factorization.

86873842566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8307025 (or 8307022 counting only the distinct ones).

The product of its digits is 92897280, while the sum is 63.

The spelling of 86873842566 in words is "eighty-six billion, eight hundred seventy-three million, eight hundred forty-two thousand, five hundred sixty-six".