5721776640 has 240 divisors, whose sum is σ = 20457904896. Its totient is φ = 1476403200.

The previous prime is 5721776611. The next prime is 5721776693. The reversal of 5721776640 is 466771275.

5721776640 is a `hidden beast` number, since 572 + 1 + 7 + 76 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 710235 + ... + 718245.

Almost surely, 2^5721776640 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 5721776640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10228952448).

5721776640 is an abundant number, since it is smaller than the sum of its proper divisors (14736128256).

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

5721776640 is a wasteful number, since it uses less digits than its factorization.

5721776640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8071 (or 8052 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 5721776640 is about 75642.4261905976. The cubic root of 5721776640 is about 1788.5879483190.

The spelling of 5721776640 in words is "five billion, seven hundred twenty-one million, seven hundred seventy-six thousand, six hundred forty".