86515694927 has 4 divisors (see below), whose sum is σ = 86517125376. Its totient is φ = 86514264480.

The previous prime is 86515694921. The next prime is 86515694953. The reversal of 86515694927 is 72949651568.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86515694927 - 2⁴ = 86515694911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86515694927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86515694921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 620303 + ... + 746864.

It is an arithmetic number, because the mean of its divisors is an integer number (21629281344).

Almost surely, 2^86515694927 is an apocalyptic number.

86515694927 is a deficient number, since it is larger than the sum of its proper divisors (1430449).

86515694927 is a wasteful number, since it uses less digits than its factorization.

86515694927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430448.

The product of its digits is 32659200, while the sum is 62.

The spelling of 86515694927 in words is "eighty-six billion, five hundred fifteen million, six hundred ninety-four thousand, nine hundred twenty-seven".