17968325773 has 2 divisors, whose sum is σ = 17968325774. Its totient is φ = 17968325772.

The previous prime is 17968325699. The next prime is 17968325819. The reversal of 17968325773 is 37752386971.

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., 17577986724 + 390339049 = 132582^2 + 19757^2 .

It is a cyclic number.

It is not a de Polignac number, because 17968325773 - 2⁹ = 17968325261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17968325173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8984162886 + 8984162887.

It is an arithmetic number, because the mean of its divisors is an integer number (8984162887).

Almost surely, 2^17968325773 is an apocalyptic number.

It is an amenable number.

17968325773 is a deficient number, since it is larger than the sum of its proper divisors (1).

17968325773 is an equidigital number, since it uses as much as digits as its factorization.

17968325773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13335840, while the sum is 58.

The spelling of 17968325773 in words is "seventeen billion, nine hundred sixty-eight million, three hundred twenty-five thousand, seven hundred seventy-three".