5721708564 has 768 divisors, whose sum is σ = 20592230400. Its totient is φ = 1343692800.

The previous prime is 5721708541. The next prime is 5721708571. The reversal of 5721708564 is 4658071275.

5721708564 is a `hidden beast` number, since 5 + 72 + 17 + 0 + 8 + 564 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 154640754 + ... + 154640790.

It is an arithmetic number, because the mean of its divisors is an integer number (26812800).

Almost surely, 2^5721708564 is an apocalyptic number.

5721708564 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5721708564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10296115200).

5721708564 is an abundant number, since it is smaller than the sum of its proper divisors (14870521836).

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

5721708564 is a wasteful number, since it uses less digits than its factorization.

5721708564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 133 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The square root of 5721708564 is about 75641.9762036926. The cubic root of 5721708564 is about 1788.5808549280.

The spelling of 5721708564 in words is "five billion, seven hundred twenty-one million, seven hundred eight thousand, five hundred sixty-four".