872551432648 has 32 divisors (see below), whose sum is σ = 1930067688960. Its totient is φ = 361887690240.

The previous prime is 872551432579. The next prime is 872551432657. The reversal of 872551432648 is 846234155278.

It is a happy number.

It is a super-2 number, since 2×872551432648² (a number of 25 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, 251309161 + ... + 251312632.

It is an arithmetic number, because the mean of its divisors is an integer number (60314615280).

Almost surely, 2^872551432648 is an apocalyptic number.

It is an amenable number.

872551432648 is an abundant number, since it is smaller than the sum of its proper divisors (1057516256312).

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

872551432648 is a wasteful number, since it uses less digits than its factorization.

872551432648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502621837 (or 502621833 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 55.

The spelling of 872551432648 in words is "eight hundred seventy-two billion, five hundred fifty-one million, four hundred thirty-two thousand, six hundred forty-eight".