6628931020 has 24 divisors (see below), whose sum is σ = 13924147104. Its totient is φ = 2650926336.

The previous prime is 6628931011. The next prime is 6628931027. The reversal of 6628931020 is 201398266.

It is not an unprimeable number, because it can be changed into a prime (6628931027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48529 + ... + 124951.

It is an arithmetic number, because the mean of its divisors is an integer number (580172796).

Almost surely, 2^6628931020 is an apocalyptic number.

It is an amenable number.

6628931020 is an abundant number, since it is smaller than the sum of its proper divisors (7295216084).

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

6628931020 is a wasteful number, since it uses less digits than its factorization.

6628931020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80769 (or 80767 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 6628931020 is about 81418.2474633297. The cubic root of 6628931020 is about 1878.5142762264.

The spelling of 6628931020 in words is "six billion, six hundred twenty-eight million, nine hundred thirty-one thousand, twenty".