86538371840615 has 4 divisors (see below), whose sum is σ = 103846046208744. Its totient is φ = 69230697472488.

The previous prime is 86538371840597. The next prime is 86538371840647. The reversal of 86538371840615 is 51604817383568.

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 86538371840615 - 2⁸ = 86538371840359 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 3 ways as a sum of consecutive naturals, for example, 8653837184057 + ... + 8653837184066.

It is an arithmetic number, because the mean of its divisors is an integer number (25961511552186).

Almost surely, 2^{86538371840615} is an apocalyptic number.

86538371840615 is a deficient number, since it is larger than the sum of its proper divisors (17307674368129).

86538371840615 is a wasteful number, since it uses less digits than its factorization.

86538371840615 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17307674368128.

The product of its (nonzero) digits is 116121600, while the sum is 65.

The spelling of 86538371840615 in words is "eighty-six trillion, five hundred thirty-eight billion, three hundred seventy-one million, eight hundred forty thousand, six hundred fifteen".