45040444238917 has 2 divisors, whose sum is σ = 45040444238918. Its totient is φ = 45040444238916.

The previous prime is 45040444238869. The next prime is 45040444238927. The reversal of 45040444238917 is 71983244404054.

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., 43829682919201 + 1210761319716 = 6620399^2 + 1100346^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45040444238917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45040444238927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22520222119458 + 22520222119459.

It is an arithmetic number, because the mean of its divisors is an integer number (22520222119459).

Almost surely, 2^{45040444238917} is an apocalyptic number.

It is an amenable number.

45040444238917 is a deficient number, since it is larger than the sum of its proper divisors (1).

45040444238917 is an equidigital number, since it uses as much as digits as its factorization.

45040444238917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15482880, while the sum is 55.

The spelling of 45040444238917 in words is "forty-five trillion, forty billion, four hundred forty-four million, two hundred thirty-eight thousand, nine hundred seventeen".