44044040812309 has 2 divisors, whose sum is σ = 44044040812310. Its totient is φ = 44044040812308.

The previous prime is 44044040812283. The next prime is 44044040812327. The reversal of 44044040812309 is 90321804044044.

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., 24540600099409 + 19503440712900 = 4953847^2 + 4416270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44044040812309 is a prime.

It is a super-2 number, since 2×44044040812309² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44044040810309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22022020406154 + 22022020406155.

It is an arithmetic number, because the mean of its divisors is an integer number (22022020406155).

Almost surely, 2^{44044040812309} is an apocalyptic number.

It is an amenable number.

44044040812309 is a deficient number, since it is larger than the sum of its proper divisors (1).

44044040812309 is an equidigital number, since it uses as much as digits as its factorization.

44044040812309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 43.

The spelling of 44044040812309 in words is "forty-four trillion, forty-four billion, forty million, eight hundred twelve thousand, three hundred nine".