5644567740 has 144 divisors (see below), whose sum is σ = 18575639712. Its totient is φ = 1276821504.

The previous prime is 5644567723. The next prime is 5644567757. The reversal of 5644567740 is 477654465.

It is an interprime number because it is at equal distance from previous prime (5644567723) and next prime (5644567757).

It is a super-2 number, since 2×5644567740² = 63722289942897415200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5644567740.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 275284 + ... + 295076.

It is an arithmetic number, because the mean of its divisors is an integer number (128997498).

Almost surely, 2^5644567740 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 5644567740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9287819856).

5644567740 is an abundant number, since it is smaller than the sum of its proper divisors (12931071972).

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

5644567740 is a wasteful number, since it uses less digits than its factorization.

5644567740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19916 (or 19907 counting only the distinct ones).

The product of its (nonzero) digits is 2822400, while the sum is 48.

The square root of 5644567740 is about 75130.3383461036. The cubic root of 5644567740 is about 1780.5064985421.

The spelling of 5644567740 in words is "five billion, six hundred forty-four million, five hundred sixty-seven thousand, seven hundred forty".