87379166815 has 4 divisors (see below), whose sum is σ = 104855000184. Its totient is φ = 69903333448.

The previous prime is 87379166801. The next prime is 87379166839. The reversal of 87379166815 is 51866197378.

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 87379166815 - 2³⁵ = 53019428447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8737916677 + ... + 8737916686.

It is an arithmetic number, because the mean of its divisors is an integer number (26213750046).

Almost surely, 2^87379166815 is an apocalyptic number.

87379166815 is a deficient number, since it is larger than the sum of its proper divisors (17475833369).

87379166815 is a wasteful number, since it uses less digits than its factorization.

87379166815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17475833368.

The product of its digits is 15240960, while the sum is 61.

The spelling of 87379166815 in words is "eighty-seven billion, three hundred seventy-nine million, one hundred sixty-six thousand, eight hundred fifteen".