13040444310437 has 2 divisors, whose sum is σ = 13040444310438. Its totient is φ = 13040444310436.

The previous prime is 13040444310367. The next prime is 13040444310449. The reversal of 13040444310437 is 73401344404031.

13040444310437 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8471790281956 + 4568654028481 = 2910634^2 + 2137441^2 .

It is a cyclic number.

It is not a de Polignac number, because 13040444310437 - 2²² = 13040440116133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13040444310437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13040444390437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6520222155218 + 6520222155219.

It is an arithmetic number, because the mean of its divisors is an integer number (6520222155219).

Almost surely, 2^{13040444310437} is an apocalyptic number.

It is an amenable number.

13040444310437 is a deficient number, since it is larger than the sum of its proper divisors (1).

13040444310437 is an equidigital number, since it uses as much as digits as its factorization.

13040444310437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 38.

Adding to 13040444310437 its reverse (73401344404031), we get a palindrome (86441788714468).

The spelling of 13040444310437 in words is "thirteen trillion, forty billion, four hundred forty-four million, three hundred ten thousand, four hundred thirty-seven".