86855530118865 has 16 divisors (see below), whose sum is σ = 138969729083328. Its totient is φ = 46322655765696.

The previous prime is 86855530118831. The next prime is 86855530118963. The reversal of 86855530118865 is 56881103555868.

It is a de Polignac number, because none of the positive numbers 2^k-86855530118865 is a prime.

It is a super-2 number, since 2×86855530118865² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 86855530118865.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15896074 + ... + 20649363.

It is an arithmetic number, because the mean of its divisors is an integer number (8685608067708).

Almost surely, 2^{86855530118865} is an apocalyptic number.

It is an amenable number.

86855530118865 is a deficient number, since it is larger than the sum of its proper divisors (52114198964463).

86855530118865 is a wasteful number, since it uses less digits than its factorization.

86855530118865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36703888.

The product of its (nonzero) digits is 276480000, while the sum is 69.

The spelling of 86855530118865 in words is "eighty-six trillion, eight hundred fifty-five billion, five hundred thirty million, one hundred eighteen thousand, eight hundred sixty-five".