6679217928 has 64 divisors (see below), whose sum is σ = 17091584640. Its totient is φ = 2174529024.

The previous prime is 6679217903. The next prime is 6679217929. The reversal of 6679217928 is 8297129766.

It is a super-2 number, since 2×6679217928² = 89223904259433226368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6679217929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161950 + ... + 198962.

It is an arithmetic number, because the mean of its divisors is an integer number (267056010).

Almost surely, 2^6679217928 is an apocalyptic number.

It is an amenable number.

6679217928 is an abundant number, since it is smaller than the sum of its proper divisors (10412366712).

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

6679217928 is a wasteful number, since it uses less digits than its factorization.

6679217928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37198 (or 37194 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 57.

The square root of 6679217928 is about 81726.4824154325. The cubic root of 6679217928 is about 1883.2524362220.

The spelling of 6679217928 in words is "six billion, six hundred seventy-nine million, two hundred seventeen thousand, nine hundred twenty-eight".