44590840909 has 2 divisors, whose sum is σ = 44590840910. Its totient is φ = 44590840908.

The previous prime is 44590840907. The next prime is 44590840933. The reversal of 44590840909 is 90904809544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44543368809 + 47472100 = 211053^2 + 6890^2 .

It is a cyclic number.

It is not a de Polignac number, because 44590840909 - 2¹ = 44590840907 is a prime.

Together with 44590840907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44590840907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22295420454 + 22295420455.

It is an arithmetic number, because the mean of its divisors is an integer number (22295420455).

Almost surely, 2^44590840909 is an apocalyptic number.

It is an amenable number.

44590840909 is a deficient number, since it is larger than the sum of its proper divisors (1).

44590840909 is an equidigital number, since it uses as much as digits as its factorization.

44590840909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 44590840909 in words is "forty-four billion, five hundred ninety million, eight hundred forty thousand, nine hundred nine".