5721581880 has 256 divisors, whose sum is σ = 23079168000. Its totient is φ = 1230833664.

The previous prime is 5721581851. The next prime is 5721581881. The reversal of 5721581880 is 881851275.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5721581881) 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 63 ways as a sum of consecutive naturals, for example, 106261 + ... + 150779.

It is an arithmetic number, because the mean of its divisors is an integer number (90153000).

Almost surely, 2^5721581880 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 5721581880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11539584000).

5721581880 is an abundant number, since it is smaller than the sum of its proper divisors (17357586120).

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

5721581880 is a wasteful number, since it uses less digits than its factorization.

5721581880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44563 (or 44553 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 45.

The square root of 5721581880 is about 75641.1388068688. The cubic root of 5721581880 is about 1788.5676545441.

The spelling of 5721581880 in words is "five billion, seven hundred twenty-one million, five hundred eighty-one thousand, eight hundred eighty".