3115680728 has 16 divisors (see below), whose sum is σ = 5844490080. Its totient is φ = 1557150048.

The previous prime is 3115680727. The next prime is 3115680731. The reversal of 3115680728 is 8270865113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115680727) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 66851 + ... + 103442.

It is an arithmetic number, because the mean of its divisors is an integer number (365280630).

Almost surely, 2^3115680728 is an apocalyptic number.

It is an amenable number.

3115680728 is a deficient number, since it is larger than the sum of its proper divisors (2728809352).

3115680728 is a wasteful number, since it uses less digits than its factorization.

3115680728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172586 (or 172582 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 3115680728 is about 55818.2830979241. The cubic root of 3115680728 is about 1460.5541038084.

The spelling of 3115680728 in words is "three billion, one hundred fifteen million, six hundred eighty thousand, seven hundred twenty-eight".