17049243491 has 16 divisors (see below), whose sum is σ = 19696297920. Its totient is φ = 14455324800.

The previous prime is 17049243443. The next prime is 17049243551. The reversal of 17049243491 is 19434294071.

It is not a de Polignac number, because 17049243491 - 2⁶ = 17049243427 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17049243401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778925 + ... + 800513.

It is an arithmetic number, because the mean of its divisors is an integer number (1231018620).

Almost surely, 2^17049243491 is an apocalyptic number.

17049243491 is a deficient number, since it is larger than the sum of its proper divisors (2647054429).

17049243491 is a wasteful number, since it uses less digits than its factorization.

17049243491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22814.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 17049243491 in words is "seventeen billion, forty-nine million, two hundred forty-three thousand, four hundred ninety-one".