44504972513 has 2 divisors, whose sum is σ = 44504972514. Its totient is φ = 44504972512.

The previous prime is 44504972489. The next prime is 44504972531. The reversal of 44504972513 is 31527940544.

Together with next prime (44504972531) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39717301264 + 4787671249 = 199292^2 + 69193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-44504972513 is a prime.

It is not a weakly prime, because it can be changed into another prime (44504942513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22252486256 + 22252486257.

It is an arithmetic number, because the mean of its divisors is an integer number (22252486257).

Almost surely, 2^44504972513 is an apocalyptic number.

It is an amenable number.

44504972513 is a deficient number, since it is larger than the sum of its proper divisors (1).

44504972513 is an equidigital number, since it uses as much as digits as its factorization.

44504972513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 44504972513 in words is "forty-four billion, five hundred four million, nine hundred seventy-two thousand, five hundred thirteen".