44424064639 has 2 divisors, whose sum is σ = 44424064640. Its totient is φ = 44424064638.

The previous prime is 44424064547. The next prime is 44424064649. The reversal of 44424064639 is 93646042444.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44424064639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44424064649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22212032319 + 22212032320.

It is an arithmetic number, because the mean of its divisors is an integer number (22212032320).

Almost surely, 2^44424064639 is an apocalyptic number.

44424064639 is a deficient number, since it is larger than the sum of its proper divisors (1).

44424064639 is an equidigital number, since it uses as much as digits as its factorization.

44424064639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 46.

The spelling of 44424064639 in words is "forty-four billion, four hundred twenty-four million, sixty-four thousand, six hundred thirty-nine".