17049042665197 has 4 divisors (see below), whose sum is σ = 17049699661696. Its totient is φ = 17048385668700.

The previous prime is 17049042665153. The next prime is 17049042665227. The reversal of 17049042665197 is 79156624094071.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17049042665197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17049042605197) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 328459323 + ... + 328511224.

It is an arithmetic number, because the mean of its divisors is an integer number (4262424915424).

Almost surely, 2^{17049042665197} is an apocalyptic number.

It is an amenable number.

17049042665197 is a deficient number, since it is larger than the sum of its proper divisors (656996499).

17049042665197 is an equidigital number, since it uses as much as digits as its factorization.

17049042665197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656996498.

The product of its (nonzero) digits is 22861440, while the sum is 61.

The spelling of 17049042665197 in words is "seventeen trillion, forty-nine billion, forty-two million, six hundred sixty-five thousand, one hundred ninety-seven".