17109965745 has 40 divisors (see below), whose sum is σ = 30859483776. Its totient is φ = 9069296544.

The previous prime is 17109965729. The next prime is 17109965771. The reversal of 17109965745 is 54756990171.

It is not a de Polignac number, because 17109965745 - 2⁴ = 17109965729 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 17109965691 and 17109965700.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 63577 + ... + 195606.

Almost surely, 2^17109965745 is an apocalyptic number.

17109965745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

17109965745 is a deficient number, since it is larger than the sum of its proper divisors (13749518031).

17109965745 is a wasteful number, since it uses less digits than its factorization.

17109965745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259363 (or 259354 counting only the distinct ones).

The product of its (nonzero) digits is 2381400, while the sum is 54.

The spelling of 17109965745 in words is "seventeen billion, one hundred nine million, nine hundred sixty-five thousand, seven hundred forty-five".