86731087021575 has 96 divisors (see below), whose sum is σ = 154867712832000. Its totient is φ = 42698171281920.

The previous prime is 86731087021567. The next prime is 86731087021589. The reversal of 86731087021575 is 57512078013768.

It is a happy number.

It is not a de Polignac number, because 86731087021575 - 2³ = 86731087021567 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 98963401 + ... + 99835949.

It is an arithmetic number, because the mean of its divisors is an integer number (1613205342000).

Almost surely, 2^{86731087021575} is an apocalyptic number.

86731087021575 is a deficient number, since it is larger than the sum of its proper divisors (68136625810425).

86731087021575 is a wasteful number, since it uses less digits than its factorization.

86731087021575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874601 (or 874596 counting only the distinct ones).

The product of its (nonzero) digits is 19756800, while the sum is 60.

The spelling of 86731087021575 in words is "eighty-six trillion, seven hundred thirty-one billion, eighty-seven million, twenty-one thousand, five hundred seventy-five".