86253638015 has 4 divisors (see below), whose sum is σ = 103504365624. Its totient is φ = 69002910408.

The previous prime is 86253637973. The next prime is 86253638017. The reversal of 86253638015 is 51083635268.

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 86253638015 - 2¹² = 86253633919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86253638017) 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, 8625363797 + ... + 8625363806.

It is an arithmetic number, because the mean of its divisors is an integer number (25876091406).

Almost surely, 2^86253638015 is an apocalyptic number.

86253638015 is a deficient number, since it is larger than the sum of its proper divisors (17250727609).

86253638015 is a wasteful number, since it uses less digits than its factorization.

86253638015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17250727608.

The product of its (nonzero) digits is 1036800, while the sum is 47.

The spelling of 86253638015 in words is "eighty-six billion, two hundred fifty-three million, six hundred thirty-eight thousand, fifteen".