170872887408 has 20 divisors (see below), whose sum is σ = 441421625928. Its totient is φ = 56957629120.

The previous prime is 170872887391. The next prime is 170872887431. The reversal of 170872887408 is 804788278071.

It is a super-2 number, since 2×170872887408² (a number of 23 digits) contains 22 as substring.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1779925863 + ... + 1779925958.

Almost surely, 2^170872887408 is an apocalyptic number.

It is an amenable number.

170872887408 is an abundant number, since it is smaller than the sum of its proper divisors (270548738520).

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

170872887408 is a wasteful number, since it uses less digits than its factorization.

170872887408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559851832 (or 3559851826 counting only the distinct ones).

The product of its (nonzero) digits is 11239424, while the sum is 60.

The spelling of 170872887408 in words is "one hundred seventy billion, eight hundred seventy-two million, eight hundred eighty-seven thousand, four hundred eight".