44559809309 has 2 divisors, whose sum is σ = 44559809310. Its totient is φ = 44559809308.

The previous prime is 44559809257. The next prime is 44559809317. The reversal of 44559809309 is 90390895544.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42682320409 + 1877488900 = 206597^2 + 43330^2 .

It is a cyclic number.

It is not a de Polignac number, because 44559809309 - 2²⁸ = 44291373853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44559809339) 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, 22279904654 + 22279904655.

It is an arithmetic number, because the mean of its divisors is an integer number (22279904655).

Almost surely, 2^44559809309 is an apocalyptic number.

It is an amenable number.

44559809309 is a deficient number, since it is larger than the sum of its proper divisors (1).

44559809309 is an equidigital number, since it uses as much as digits as its factorization.

44559809309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6998400, while the sum is 56.

The spelling of 44559809309 in words is "forty-four billion, five hundred fifty-nine million, eight hundred nine thousand, three hundred nine".