6620879832 has 64 divisors (see below), whose sum is σ = 19175969280. Its totient is φ = 1865763072.

The previous prime is 6620879803. The next prime is 6620879873. The reversal of 6620879832 is 2389780266.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257668 + ... + 282195.

It is an arithmetic number, because the mean of its divisors is an integer number (299624520).

Almost surely, 2^6620879832 is an apocalyptic number.

It is an amenable number.

6620879832 is an abundant number, since it is smaller than the sum of its proper divisors (12555089448).

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

6620879832 is a wasteful number, since it uses less digits than its factorization.

6620879832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539952 (or 539948 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 6620879832 is about 81368.7890532973. The cubic root of 6620879832 is about 1877.7534497440.

The spelling of 6620879832 in words is "six billion, six hundred twenty million, eight hundred seventy-nine thousand, eight hundred thirty-two".