5644311620 has 12 divisors (see below), whose sum is σ = 11853054444. Its totient is φ = 2257724640.

The previous prime is 5644311611. The next prime is 5644311649. The reversal of 5644311620 is 261134465.

It can be written as a sum of positive squares in 2 ways, for example, as 2123550724 + 3520760896 = 46082^2 + 59336^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141107771 + ... + 141107810.

It is an arithmetic number, because the mean of its divisors is an integer number (987754537).

Almost surely, 2^5644311620 is an apocalyptic number.

It is an amenable number.

5644311620 is an abundant number, since it is smaller than the sum of its proper divisors (6208742824).

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

5644311620 is a wasteful number, since it uses less digits than its factorization.

5644311620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282215590 (or 282215588 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 5644311620 is about 75128.6338222651. The cubic root of 5644311620 is about 1780.4795682117.

The spelling of 5644311620 in words is "five billion, six hundred forty-four million, three hundred eleven thousand, six hundred twenty".