5711581728 has 96 divisors (see below), whose sum is σ = 16697016000. Its totient is φ = 1899491328.

The previous prime is 5711581721. The next prime is 5711581751. The reversal of 5711581728 is 8271851175.

5711581728 is a `hidden beast` number, since 57 + 11 + 581 + 7 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (5711581721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380575 + ... + 395297.

It is an arithmetic number, because the mean of its divisors is an integer number (173927250).

Almost surely, 2^5711581728 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 5711581728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8348508000).

5711581728 is an abundant number, since it is smaller than the sum of its proper divisors (10985434272).

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

5711581728 is a wasteful number, since it uses less digits than its factorization.

5711581728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15191 (or 15177 counting only the distinct ones).

The product of its digits is 156800, while the sum is 45.

The square root of 5711581728 is about 75575.0072973863. The cubic root of 5711581728 is about 1787.5250303633.

The spelling of 5711581728 in words is "five billion, seven hundred eleven million, five hundred eighty-one thousand, seven hundred twenty-eight".