879216973648 has 20 divisors (see below), whose sum is σ = 1834520031988. Its totient is φ = 405792449280.

The previous prime is 879216973601. The next prime is 879216973693. The reversal of 879216973648 is 846379612978.

It is a happy number.

879216973648 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 556056558864 + 323160414784 = 745692^2 + 568472^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2113502133 + ... + 2113502548.

Almost surely, 2^879216973648 is an apocalyptic number.

It is an amenable number.

879216973648 is an abundant number, since it is smaller than the sum of its proper divisors (955303058340).

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

879216973648 is a wasteful number, since it uses less digits than its factorization.

879216973648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227004702 (or 4227004696 counting only the distinct ones).

The product of its digits is 219469824, while the sum is 70.

The spelling of 879216973648 in words is "eight hundred seventy-nine billion, two hundred sixteen million, nine hundred seventy-three thousand, six hundred forty-eight".