86645800915 has 4 divisors (see below), whose sum is σ = 103974961104. Its totient is φ = 69316640728.

The previous prime is 86645800883. The next prime is 86645800921. The reversal of 86645800915 is 51900854668.

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 86645800915 - 2⁵ = 86645800883 is a prime.

It is a Duffinian 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, 8664580087 + ... + 8664580096.

It is an arithmetic number, because the mean of its divisors is an integer number (25993740276).

Almost surely, 2^86645800915 is an apocalyptic number.

86645800915 is a deficient number, since it is larger than the sum of its proper divisors (17329160189).

86645800915 is a wasteful number, since it uses less digits than its factorization.

86645800915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17329160188.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 86645800915 in words is "eighty-six billion, six hundred forty-five million, eight hundred thousand, nine hundred fifteen".