17797964609 has 8 divisors (see below), whose sum is σ = 18146507112. Its totient is φ = 17449893760.

The previous prime is 17797964567. The next prime is 17797964633. The reversal of 17797964609 is 90646979771.

It can be written as a sum of positive squares in 4 ways, for example, as 11512646209 + 6285318400 = 107297^2 + 79280^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17797964609 - 2¹⁶ = 17797899073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17797964669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41222 + ... + 193119.

It is an arithmetic number, because the mean of its divisors is an integer number (2268313389).

Almost surely, 2^17797964609 is an apocalyptic number.

It is an amenable number.

17797964609 is a deficient number, since it is larger than the sum of its proper divisors (348542503).

17797964609 is a wasteful number, since it uses less digits than its factorization.

17797964609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235827.

The product of its (nonzero) digits is 36006768, while the sum is 65.

The spelling of 17797964609 in words is "seventeen billion, seven hundred ninety-seven million, nine hundred sixty-four thousand, six hundred nine".