86853216515 has 32 divisors (see below), whose sum is σ = 117192652416. Its totient is φ = 61311697920.

The previous prime is 86853216503. The next prime is 86853216523. The reversal of 86853216515 is 51561235868.

It is not a de Polignac number, because 86853216515 - 2¹⁴ = 86853200131 is a prime.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian 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 31 ways as a sum of consecutive naturals, for example, 2556017 + ... + 2589773.

It is an arithmetic number, because the mean of its divisors is an integer number (3662270388).

Almost surely, 2^86853216515 is an apocalyptic number.

86853216515 is a deficient number, since it is larger than the sum of its proper divisors (30339435901).

86853216515 is a wasteful number, since it uses less digits than its factorization.

86853216515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35519.

The product of its digits is 1728000, while the sum is 50.

The spelling of 86853216515 in words is "eighty-six billion, eight hundred fifty-three million, two hundred sixteen thousand, five hundred fifteen".