5730928721 has 16 divisors (see below), whose sum is σ = 6735974400. Its totient is φ = 4873508640.

The previous prime is 5730928681. The next prime is 5730928733. The reversal of 5730928721 is 1278290375.

5730928721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-5730928721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5730928921) 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, 22220 + ... + 109341.

It is an arithmetic number, because the mean of its divisors is an integer number (420998400).

Almost surely, 2^5730928721 is an apocalyptic number.

It is an amenable number.

5730928721 is a deficient number, since it is larger than the sum of its proper divisors (1005045679).

5730928721 is a wasteful number, since it uses less digits than its factorization.

5730928721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131709 (or 131695 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 5730928721 is about 75702.8977054379. The cubic root of 5730928721 is about 1789.5410661409.

The spelling of 5730928721 in words is "five billion, seven hundred thirty million, nine hundred twenty-eight thousand, seven hundred twenty-one".