5721704664 has 128 divisors (see below), whose sum is σ = 16126387200. Its totient is φ = 1678533120.

The previous prime is 5721704663. The next prime is 5721704701. The reversal of 5721704664 is 4664071275.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721704663) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2575074 + ... + 2577294.

It is an arithmetic number, because the mean of its divisors is an integer number (125987400).

Almost surely, 2^5721704664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5721704664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8063193600).

5721704664 is an abundant number, since it is smaller than the sum of its proper divisors (10404682536).

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

5721704664 is a wasteful number, since it uses less digits than its factorization.

5721704664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2625 (or 2621 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 42.

The square root of 5721704664 is about 75641.9504243512. The cubic root of 5721704664 is about 1788.5804485537.

The spelling of 5721704664 in words is "five billion, seven hundred twenty-one million, seven hundred four thousand, six hundred sixty-four".