2044440330509 has 2 divisors, whose sum is σ = 2044440330510. Its totient is φ = 2044440330508.

The previous prime is 2044440330397. The next prime is 2044440330607. The reversal of 2044440330509 is 9050330444402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2030639250025 + 13801080484 = 1425005^2 + 117478^2 .

It is a cyclic number.

It is not a de Polignac number, because 2044440330509 - 2¹⁶ = 2044440264973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2044440320509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022220165254 + 1022220165255.

It is an arithmetic number, because the mean of its divisors is an integer number (1022220165255).

Almost surely, 2^{2044440330509} is an apocalyptic number.

It is an amenable number.

2044440330509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2044440330509 is an equidigital number, since it uses as much as digits as its factorization.

2044440330509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 2044440330509 in words is "two trillion, forty-four billion, four hundred forty million, three hundred thirty thousand, five hundred nine".