17104323557 has 2 divisors, whose sum is σ = 17104323558. Its totient is φ = 17104323556.

The previous prime is 17104323553. The next prime is 17104323559. The reversal of 17104323557 is 75532340171.

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., 11069985796 + 6034337761 = 105214^2 + 77681^2 .

It is a cyclic number.

It is not a de Polignac number, because 17104323557 - 2² = 17104323553 is a prime.

Together with 17104323559, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17104323557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17104323553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8552161778 + 8552161779.

It is an arithmetic number, because the mean of its divisors is an integer number (8552161779).

Almost surely, 2^17104323557 is an apocalyptic number.

It is an amenable number.

17104323557 is a deficient number, since it is larger than the sum of its proper divisors (1).

17104323557 is an equidigital number, since it uses as much as digits as its factorization.

17104323557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 38.

The spelling of 17104323557 in words is "seventeen billion, one hundred four million, three hundred twenty-three thousand, five hundred fifty-seven".