6748868728 has 32 divisors (see below), whose sum is σ = 14677718400. Its totient is φ = 2849200992.

The previous prime is 6748868717. The next prime is 6748868741. The reversal of 6748868728 is 8278688476.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6748868728.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895618 + ... + 903121.

It is an arithmetic number, because the mean of its divisors is an integer number (458678700).

Almost surely, 2^6748868728 is an apocalyptic number.

It is an amenable number.

6748868728 is an abundant number, since it is smaller than the sum of its proper divisors (7928849672).

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

6748868728 is a wasteful number, since it uses less digits than its factorization.

6748868728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798819 (or 1798815 counting only the distinct ones).

The product of its digits is 57802752, while the sum is 64.

The square root of 6748868728 is about 82151.4986351436. The cubic root of 6748868728 is about 1889.7759901728.

The spelling of 6748868728 in words is "six billion, seven hundred forty-eight million, eight hundred sixty-eight thousand, seven hundred twenty-eight".