6669678928 has 40 divisors (see below), whose sum is σ = 14102909856. Its totient is φ = 3030460800.

The previous prime is 6669678919. The next prime is 6669678931. The reversal of 6669678928 is 8298769666.

It is a happy number.

It is a congruent number.

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, 550698 + ... + 562678.

Almost surely, 2^6669678928 is an apocalyptic number.

It is an amenable number.

6669678928 is an abundant number, since it is smaller than the sum of its proper divisors (7433230928).

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

6669678928 is a wasteful number, since it uses less digits than its factorization.

6669678928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15163 (or 15157 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 67.

The square root of 6669678928 is about 81668.1022676540. The cubic root of 6669678928 is about 1882.3554797236.

The spelling of 6669678928 in words is "six billion, six hundred sixty-nine million, six hundred seventy-eight thousand, nine hundred twenty-eight".