5721756986 has 32 divisors (see below), whose sum is σ = 9809233920. Its totient is φ = 2479316400.

The previous prime is 5721756899. The next prime is 5721756991. The reversal of 5721756986 is 6896571275.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16916 + ... + 108303.

It is an arithmetic number, because the mean of its divisors is an integer number (306538560).

Almost surely, 2^5721756986 is an apocalyptic number.

5721756986 is a deficient number, since it is larger than the sum of its proper divisors (4087476934).

5721756986 is a wasteful number, since it uses less digits than its factorization.

5721756986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125330.

The product of its digits is 6350400, while the sum is 56.

The square root of 5721756986 is about 75642.2962766203. The cubic root of 5721756986 is about 1788.5859004150.

The spelling of 5721756986 in words is "five billion, seven hundred twenty-one million, seven hundred fifty-six thousand, nine hundred eighty-six".