5722661844 has 36 divisors (see below), whose sum is σ = 14663783316. Its totient is φ = 1881422208.

The previous prime is 5722661801. The next prime is 5722661849. The reversal of 5722661844 is 4481662275.

5722661844 is a `hidden beast` number, since 5 + 7 + 2 + 26 + 618 + 4 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1170460944 + 4552200900 = 34212^2 + 67470^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 5722661844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5722661849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1086159 + ... + 1091414.

Almost surely, 2^5722661844 is an apocalyptic number.

It is an amenable number.

5722661844 is an abundant number, since it is smaller than the sum of its proper divisors (8941121472).

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

5722661844 is a wasteful number, since it uses less digits than its factorization.

5722661844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2177656 (or 2177651 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 5722661844 is about 75648.2772044413. The cubic root of 5722661844 is about 1788.6801797863.

The spelling of 5722661844 in words is "five billion, seven hundred twenty-two million, six hundred sixty-one thousand, eight hundred forty-four".