17973598889 has 2 divisors, whose sum is σ = 17973598890. Its totient is φ = 17973598888.

The previous prime is 17973598849. The next prime is 17973598897. The reversal of 17973598889 is 98889537971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15145486489 + 2828112400 = 123067^2 + 53180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17973598889 is a prime.

It is not a weakly prime, because it can be changed into another prime (17973598829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8986799444 + 8986799445.

It is an arithmetic number, because the mean of its divisors is an integer number (8986799445).

Almost surely, 2^17973598889 is an apocalyptic number.

It is an amenable number.

17973598889 is a deficient number, since it is larger than the sum of its proper divisors (1).

17973598889 is an equidigital number, since it uses as much as digits as its factorization.

17973598889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 274337280, while the sum is 74.

The spelling of 17973598889 in words is "seventeen billion, nine hundred seventy-three million, five hundred ninety-eight thousand, eight hundred eighty-nine".