87017688575872 has 64 divisors (see below), whose sum is σ = 178366045289040. Its totient is φ = 42260658319360.

The previous prime is 87017688575833. The next prime is 87017688575893. The reversal of 87017688575872 is 27857588671078.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 87017688575792 and 87017688575801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35330983 + ... + 37713574.

Almost surely, 2^{87017688575872} is an apocalyptic number.

87017688575872 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

87017688575872 is an abundant number, since it is smaller than the sum of its proper divisors (91348356713168).

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

87017688575872 is a wasteful number, since it uses less digits than its factorization.

87017688575872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73044839 (or 73044827 counting only the distinct ones).

The product of its (nonzero) digits is 2950348800, while the sum is 79.

The spelling of 87017688575872 in words is "eighty-seven trillion, seventeen billion, six hundred eighty-eight million, five hundred seventy-five thousand, eight hundred seventy-two".