17043988849 has 2 divisors, whose sum is σ = 17043988850. Its totient is φ = 17043988848.

The previous prime is 17043988811. The next prime is 17043988859. The reversal of 17043988849 is 94888934071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9176298849 + 7867690000 = 95793^2 + 88700^2 .

It is a cyclic number.

It is not a de Polignac number, because 17043988849 - 2¹¹ = 17043986801 is a prime.

It is not a weakly prime, because it can be changed into another prime (17043988859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8521994424 + 8521994425.

It is an arithmetic number, because the mean of its divisors is an integer number (8521994425).

Almost surely, 2^17043988849 is an apocalyptic number.

It is an amenable number.

17043988849 is a deficient number, since it is larger than the sum of its proper divisors (1).

17043988849 is an equidigital number, since it uses as much as digits as its factorization.

17043988849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13934592, while the sum is 61.

The spelling of 17043988849 in words is "seventeen billion, forty-three million, nine hundred eighty-eight thousand, eight hundred forty-nine".