5644554439 has 2 divisors, whose sum is σ = 5644554440. Its totient is φ = 5644554438.

The previous prime is 5644554413. The next prime is 5644554467. The reversal of 5644554439 is 9344554465.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5644554439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5644554392 and 5644554401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5644554469) 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 as a sum of consecutive naturals, namely, 2822277219 + 2822277220.

It is an arithmetic number, because the mean of its divisors is an integer number (2822277220).

Almost surely, 2^5644554439 is an apocalyptic number.

5644554439 is a deficient number, since it is larger than the sum of its proper divisors (1).

5644554439 is an equidigital number, since it uses as much as digits as its factorization.

5644554439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184000, while the sum is 49.

The square root of 5644554439 is about 75130.2498265512. The cubic root of 5644554439 is about 1780.5050999977.

The spelling of 5644554439 in words is "five billion, six hundred forty-four million, five hundred fifty-four thousand, four hundred thirty-nine".