872808640120 has 16 divisors (see below), whose sum is σ = 1963819440360. Its totient is φ = 349123456032.

The previous prime is 872808640073. The next prime is 872808640129. The reversal of 872808640120 is 21046808278.

It is a happy number.

It is a super-2 number, since 2×872808640120² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872808640129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10910107962 + ... + 10910108041.

Almost surely, 2^872808640120 is an apocalyptic number.

It is an amenable number.

872808640120 is an abundant number, since it is smaller than the sum of its proper divisors (1091010800240).

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

872808640120 is a wasteful number, since it uses less digits than its factorization.

872808640120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21820216014 (or 21820216010 counting only the distinct ones).

The product of its (nonzero) digits is 344064, while the sum is 46.

The spelling of 872808640120 in words is "eight hundred seventy-two billion, eight hundred eight million, six hundred forty thousand, one hundred twenty".