17244143993 has 32 divisors (see below), whose sum is σ = 18619130880. Its totient is φ = 15933360960.

The previous prime is 17244143989. The next prime is 17244144017. The reversal of 17244143993 is 39934144271.

It is a cyclic number.

It is not a de Polignac number, because 17244143993 - 2² = 17244143989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17244143923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31874303 + ... + 31874843.

It is an arithmetic number, because the mean of its divisors is an integer number (581847840).

Almost surely, 2^17244143993 is an apocalyptic number.

It is an amenable number.

17244143993 is a deficient number, since it is larger than the sum of its proper divisors (1374986887).

17244143993 is a wasteful number, since it uses less digits than its factorization.

17244143993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 989.

The product of its digits is 653184, while the sum is 47.

The spelling of 17244143993 in words is "seventeen billion, two hundred forty-four million, one hundred forty-three thousand, nine hundred ninety-three".