44031243505913 has 2 divisors, whose sum is σ = 44031243505914. Its totient is φ = 44031243505912.

The previous prime is 44031243505901. The next prime is 44031243505937. The reversal of 44031243505913 is 31950534213044.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32744579954944 + 11286663550969 = 5722288^2 + 3359563^2 .

It is a cyclic number.

It is not a de Polignac number, because 44031243505913 - 2⁴ = 44031243505897 is a prime.

It is not a weakly prime, because it can be changed into another prime (44031243505313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22015621752956 + 22015621752957.

It is an arithmetic number, because the mean of its divisors is an integer number (22015621752957).

Almost surely, 2^{44031243505913} is an apocalyptic number.

It is an amenable number.

44031243505913 is a deficient number, since it is larger than the sum of its proper divisors (1).

44031243505913 is an equidigital number, since it uses as much as digits as its factorization.

44031243505913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 44.

Adding to 44031243505913 its reverse (31950534213044), we get a palindrome (75981777718957).

The spelling of 44031243505913 in words is "forty-four trillion, thirty-one billion, two hundred forty-three million, five hundred five thousand, nine hundred thirteen".