86944818978315 has 48 divisors (see below), whose sum is σ = 152195397120000. Its totient is φ = 45913250730816.

The previous prime is 86944818978301. The next prime is 86944818978323. The reversal of 86944818978315 is 51387981844968.

86944818978315 is a `hidden beast` number, since 8 + 6 + 9 + 448 + 1 + 8 + 97 + 83 + 1 + 5 = 666.

It is not a de Polignac number, because 86944818978315 - 2²⁸ = 86944550542859 is a prime.

It is a super-3 number, since 3×86944818978315³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12392145 + ... + 18095714.

It is an arithmetic number, because the mean of its divisors is an integer number (3170737440000).

Almost surely, 2^{86944818978315} is an apocalyptic number.

86944818978315 is a deficient number, since it is larger than the sum of its proper divisors (65250578141685).

86944818978315 is a wasteful number, since it uses less digits than its factorization.

86944818978315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30488496 (or 30488493 counting only the distinct ones).

The product of its digits is 3344302080, while the sum is 81.

The spelling of 86944818978315 in words is "eighty-six trillion, nine hundred forty-four billion, eight hundred eighteen million, nine hundred seventy-eight thousand, three hundred fifteen".