17042123717 has 2 divisors, whose sum is σ = 17042123718. Its totient is φ = 17042123716.

The previous prime is 17042123699. The next prime is 17042123759. The reversal of 17042123717 is 71732124071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15945123076 + 1097000641 = 126274^2 + 33121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17042123717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17042123317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8521061858 + 8521061859.

It is an arithmetic number, because the mean of its divisors is an integer number (8521061859).

Almost surely, 2^17042123717 is an apocalyptic number.

It is an amenable number.

17042123717 is a deficient number, since it is larger than the sum of its proper divisors (1).

17042123717 is an equidigital number, since it uses as much as digits as its factorization.

17042123717 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 35.

Adding to 17042123717 its reverse (71732124071), we get a palindrome (88774247788).

The spelling of 17042123717 in words is "seventeen billion, forty-two million, one hundred twenty-three thousand, seven hundred seventeen".