871032072665668 has 24 divisors (see below), whose sum is σ = 1591204308724800. Its totient is φ = 416417127366240.

The previous prime is 871032072665653. The next prime is 871032072665687. The reversal of 871032072665668 is 866566270230178.

It is a super-2 number, since 2×871032072665668² (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 7 ways as a sum of consecutive naturals, for example, 1856913378 + ... + 1857382393.

It is an arithmetic number, because the mean of its divisors is an integer number (66300179530200).

Almost surely, 2^{871032072665668} is an apocalyptic number.

It is an amenable number.

871032072665668 is a deficient number, since it is larger than the sum of its proper divisors (720172236059132).

871032072665668 is a wasteful number, since it uses less digits than its factorization.

871032072665668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714298347 (or 3714298345 counting only the distinct ones).

The product of its (nonzero) digits is 243855360, while the sum is 67.

The spelling of 871032072665668 in words is "eight hundred seventy-one trillion, thirty-two billion, seventy-two million, six hundred sixty-five thousand, six hundred sixty-eight".