15242037257017 has 2 divisors, whose sum is σ = 15242037257018. Its totient is φ = 15242037257016.

The previous prime is 15242037256997. The next prime is 15242037257023. The reversal of 15242037257017 is 71075273024251.

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., 11875439797776 + 3366597459241 = 3446076^2 + 1834829^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15242037257017 is a prime.

It is not a weakly prime, because it can be changed into another prime (15242037251017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7621018628508 + 7621018628509.

It is an arithmetic number, because the mean of its divisors is an integer number (7621018628509).

Almost surely, 2^{15242037257017} is an apocalyptic number.

It is an amenable number.

15242037257017 is a deficient number, since it is larger than the sum of its proper divisors (1).

15242037257017 is an equidigital number, since it uses as much as digits as its factorization.

15242037257017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 823200, while the sum is 46.

The spelling of 15242037257017 in words is "fifteen trillion, two hundred forty-two billion, thirty-seven million, two hundred fifty-seven thousand, seventeen".