86215117255 has 8 divisors (see below), whose sum is σ = 103605731424. Its totient is φ = 68873700000.

The previous prime is 86215117243. The next prime is 86215117301. The reversal of 86215117255 is 55271151268.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 86215117255 - 2⁵ = 86215117223 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 12295371 + ... + 12302380.

It is an arithmetic number, because the mean of its divisors is an integer number (12950716428).

Almost surely, 2^86215117255 is an apocalyptic number.

86215117255 is a deficient number, since it is larger than the sum of its proper divisors (17390614169).

86215117255 is a wasteful number, since it uses less digits than its factorization.

86215117255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24598457.

The product of its digits is 168000, while the sum is 43.

The spelling of 86215117255 in words is "eighty-six billion, two hundred fifteen million, one hundred seventeen thousand, two hundred fifty-five".