5721121682 has 16 divisors (see below), whose sum is σ = 8880226560. Its totient is φ = 2761104528.

The previous prime is 5721121661. The next prime is 5721121699. The reversal of 5721121682 is 2861211275.

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, 213983 + ... + 239229.

It is an arithmetic number, because the mean of its divisors is an integer number (555014160).

Almost surely, 2^5721121682 is an apocalyptic number.

5721121682 is a deficient number, since it is larger than the sum of its proper divisors (3159104878).

5721121682 is a wasteful number, since it uses less digits than its factorization.

5721121682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29185.

The product of its digits is 13440, while the sum is 35.

The square root of 5721121682 is about 75638.0967634697. The cubic root of 5721121682 is about 1788.5197005957.

The spelling of 5721121682 in words is "five billion, seven hundred twenty-one million, one hundred twenty-one thousand, six hundred eighty-two".