17104311989 has 2 divisors, whose sum is σ = 17104311990. Its totient is φ = 17104311988.

The previous prime is 17104311953. The next prime is 17104312003. The reversal of 17104311989 is 98911340171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13287172900 + 3817139089 = 115270^2 + 61783^2 .

It is a cyclic number.

It is not a de Polignac number, because 17104311989 - 2¹² = 17104307893 is a prime.

It is a super-2 number, since 2×17104311989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17104311929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8552155994 + 8552155995.

It is an arithmetic number, because the mean of its divisors is an integer number (8552155995).

Almost surely, 2^17104311989 is an apocalyptic number.

It is an amenable number.

17104311989 is a deficient number, since it is larger than the sum of its proper divisors (1).

17104311989 is an equidigital number, since it uses as much as digits as its factorization.

17104311989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 17104311989 in words is "seventeen billion, one hundred four million, three hundred eleven thousand, nine hundred eighty-nine".