17244143989 has 2 divisors, whose sum is σ = 17244143990. Its totient is φ = 17244143988.

The previous prime is 17244143981. The next prime is 17244144017. The reversal of 17244143989 is 98934144271.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14995961764 + 2248182225 = 122458^2 + 47415^2 .

It is a cyclic number.

It is not a de Polignac number, because 17244143989 - 2³ = 17244143981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17244143981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8622071994 + 8622071995.

It is an arithmetic number, because the mean of its divisors is an integer number (8622071995).

Almost surely, 2^17244143989 is an apocalyptic number.

It is an amenable number.

17244143989 is a deficient number, since it is larger than the sum of its proper divisors (1).

17244143989 is an equidigital number, since it uses as much as digits as its factorization.

17244143989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1741824, while the sum is 52.

The spelling of 17244143989 in words is "seventeen billion, two hundred forty-four million, one hundred forty-three thousand, nine hundred eighty-nine".