87890394975696 has 120 divisors (see below), whose sum is σ = 256395185148960. Its totient is φ = 28070635756800.

The previous prime is 87890394975689. The next prime is 87890394975769. The reversal of 87890394975696 is 69657949309878.

87890394975696 is a `hidden beast` number, since 8 + 7 + 8 + 9 + 0 + 39 + 4 + 9 + 7 + 569 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79783290 + ... + 80877401.

It is an arithmetic number, because the mean of its divisors is an integer number (2136626542908).

Almost surely, 2^{87890394975696} is an apocalyptic number.

It is an amenable number.

87890394975696 is an abundant number, since it is smaller than the sum of its proper divisors (168504790173264).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87890394975696 is a wasteful number, since it uses less digits than its factorization.

87890394975696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160660865 (or 160660856 counting only the distinct ones).

The product of its (nonzero) digits is 44442639360, while the sum is 90.

The spelling of 87890394975696 in words is "eighty-seven trillion, eight hundred ninety billion, three hundred ninety-four million, nine hundred seventy-five thousand, six hundred ninety-six".