871031800128085 has 8 divisors (see below), whose sum is σ = 1045339217758080. Its totient is φ = 696758068366224.

The previous prime is 871031800128053. The next prime is 871031800128121. The reversal of 871031800128085 is 580821008130178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 871031800128085 - 2⁵ = 871031800128053 is a prime.

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, 8421410145 + ... + 8421513574.

It is an arithmetic number, because the mean of its divisors is an integer number (130667402219760).

Almost surely, 2^{871031800128085} is an apocalyptic number.

It is an amenable number.

871031800128085 is a deficient number, since it is larger than the sum of its proper divisors (174307417629995).

871031800128085 is a wasteful number, since it uses less digits than its factorization.

871031800128085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16842934067.

The product of its (nonzero) digits is 860160, while the sum is 52.

The spelling of 871031800128085 in words is "eight hundred seventy-one trillion, thirty-one billion, eight hundred million, one hundred twenty-eight thousand, eighty-five".