44344661813 has 2 divisors, whose sum is σ = 44344661814. Its totient is φ = 44344661812.

The previous prime is 44344661707. The next prime is 44344661819. The reversal of 44344661813 is 31816644344.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33706389649 + 10638272164 = 183593^2 + 103142^2 .

It is a cyclic number.

It is not a de Polignac number, because 44344661813 - 2¹⁶ = 44344596277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44344661819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22172330906 + 22172330907.

It is an arithmetic number, because the mean of its divisors is an integer number (22172330907).

Almost surely, 2^44344661813 is an apocalyptic number.

It is an amenable number.

44344661813 is a deficient number, since it is larger than the sum of its proper divisors (1).

44344661813 is an equidigital number, since it uses as much as digits as its factorization.

44344661813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 44.

The spelling of 44344661813 in words is "forty-four billion, three hundred forty-four million, six hundred sixty-one thousand, eight hundred thirteen".