871345351217802 has 32 divisors (see below), whose sum is σ = 1797188788431360. Its totient is φ = 281504108048240.

The previous prime is 871345351217753. The next prime is 871345351217881. The reversal of 871345351217802 is 208712153543178.

It is a super-2 number, since 2×871345351217802² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17333971668 + ... + 17334021935.

It is an arithmetic number, because the mean of its divisors is an integer number (56162149638480).

Almost surely, 2^{871345351217802} is an apocalyptic number.

871345351217802 is an abundant number, since it is smaller than the sum of its proper divisors (925843437213558).

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

871345351217802 is a wasteful number, since it uses less digits than its factorization.

871345351217802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34667993738.

The product of its (nonzero) digits is 11289600, while the sum is 57.

The spelling of 871345351217802 in words is "eight hundred seventy-one trillion, three hundred forty-five billion, three hundred fifty-one million, two hundred seventeen thousand, eight hundred two".