5644223643 has 8 divisors (see below), whose sum is σ = 7531840528. Its totient is φ = 3759711264.

The previous prime is 5644223639. The next prime is 5644223659. The reversal of 5644223643 is 3463224465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5644223643 - 2² = 5644223639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5644223623) 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 7 ways as a sum of consecutive naturals, for example, 771880 + ... + 779157.

It is an arithmetic number, because the mean of its divisors is an integer number (941480066).

Almost surely, 2^5644223643 is an apocalyptic number.

5644223643 is a deficient number, since it is larger than the sum of its proper divisors (1887616885).

5644223643 is a wasteful number, since it uses less digits than its factorization.

5644223643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552253.

The product of its digits is 414720, while the sum is 39.

The square root of 5644223643 is about 75128.0483108672. The cubic root of 5644223643 is about 1780.4703174784.

The spelling of 5644223643 in words is "five billion, six hundred forty-four million, two hundred twenty-three thousand, six hundred forty-three".