15745374923017 has 2 divisors, whose sum is σ = 15745374923018. Its totient is φ = 15745374923016.

The previous prime is 15745374923009. The next prime is 15745374923021. The reversal of 15745374923017 is 71032947354751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14724878964601 + 1020495958416 = 3837301^2 + 1010196^2 .

It is a cyclic number.

It is not a de Polignac number, because 15745374923017 - 2³ = 15745374923009 is a prime.

It is not a weakly prime, because it can be changed into another prime (15745374923417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7872687461508 + 7872687461509.

It is an arithmetic number, because the mean of its divisors is an integer number (7872687461509).

Almost surely, 2^{15745374923017} is an apocalyptic number.

It is an amenable number.

15745374923017 is a deficient number, since it is larger than the sum of its proper divisors (1).

15745374923017 is an equidigital number, since it uses as much as digits as its factorization.

15745374923017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22226400, while the sum is 58.

The spelling of 15745374923017 in words is "fifteen trillion, seven hundred forty-five billion, three hundred seventy-four million, nine hundred twenty-three thousand, seventeen".