6728668875 has 48 divisors (see below), whose sum is σ = 12425474880. Its totient is φ = 3501072000.

The previous prime is 6728668847. The next prime is 6728668897. The reversal of 6728668875 is 5788668276.

It is not a de Polignac number, because 6728668875 - 2⁸ = 6728668619 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26815 + ... + 119064.

It is an arithmetic number, because the mean of its divisors is an integer number (258864060).

Almost surely, 2^6728668875 is an apocalyptic number.

6728668875 is a deficient number, since it is larger than the sum of its proper divisors (5696806005).

6728668875 is a wasteful number, since it uses less digits than its factorization.

6728668875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145941 (or 145928 counting only the distinct ones).

The product of its digits is 54190080, while the sum is 63.

The square root of 6728668875 is about 82028.4638098264. The cubic root of 6728668875 is about 1887.8886938348. Note that the first 3 decimals are identical.

It can be divided in two parts, 67286 and 68875, that added together give a square (136161 = 369²).

The spelling of 6728668875 in words is "six billion, seven hundred twenty-eight million, six hundred sixty-eight thousand, eight hundred seventy-five".