17213140717 has 2 divisors, whose sum is σ = 17213140718. Its totient is φ = 17213140716.

The previous prime is 17213140699. The next prime is 17213140829. The reversal of 17213140717 is 71704131271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9142993161 + 8070147556 = 95619^2 + 89834^2 .

It is an emirp because it is prime and its reverse (71704131271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17213140717 - 2¹¹ = 17213138669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17213149717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8606570358 + 8606570359.

It is an arithmetic number, because the mean of its divisors is an integer number (8606570359).

Almost surely, 2^17213140717 is an apocalyptic number.

It is an amenable number.

17213140717 is a deficient number, since it is larger than the sum of its proper divisors (1).

17213140717 is an equidigital number, since it uses as much as digits as its factorization.

17213140717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8232, while the sum is 34.

Adding to 17213140717 its reverse (71704131271), we get a palindrome (88917271988).

The spelling of 17213140717 in words is "seventeen billion, two hundred thirteen million, one hundred forty thousand, seven hundred seventeen".