86215177385 has 16 divisors (see below), whose sum is σ = 108935299200. Its totient is φ = 65322878976.

The previous prime is 86215177369. The next prime is 86215177397. The reversal of 86215177385 is 58377151268.

It is a cyclic number.

It is not a de Polignac number, because 86215177385 - 2⁴ = 86215177369 is a prime.

It is a Curzon number.

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, 197156 + ... + 459674.

It is an arithmetic number, because the mean of its divisors is an integer number (6808456200).

Almost surely, 2^86215177385 is an apocalyptic number.

It is an amenable number.

86215177385 is a deficient number, since it is larger than the sum of its proper divisors (22720121815).

86215177385 is a wasteful number, since it uses less digits than its factorization.

86215177385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266000.

The product of its digits is 2822400, while the sum is 53.

The spelling of 86215177385 in words is "eighty-six billion, two hundred fifteen million, one hundred seventy-seven thousand, three hundred eighty-five".