4244665993 has 2 divisors, whose sum is σ = 4244665994. Its totient is φ = 4244665992.

The previous prime is 4244665967. The next prime is 4244666017. The reversal of 4244665993 is 3995664424.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2605387849 + 1639278144 = 51043^2 + 40488^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4244665993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4244665993.

It is not a weakly prime, because it can be changed into another prime (4244665913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2122332996 + 2122332997.

It is an arithmetic number, because the mean of its divisors is an integer number (2122332997).

Almost surely, 2^4244665993 is an apocalyptic number.

It is an amenable number.

4244665993 is a deficient number, since it is larger than the sum of its proper divisors (1).

4244665993 is an equidigital number, since it uses as much as digits as its factorization.

4244665993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5598720, while the sum is 52.

The square root of 4244665993 is about 65151.1012416521. The cubic root of 4244665993 is about 1619.1279654911.

The spelling of 4244665993 in words is "four billion, two hundred forty-four million, six hundred sixty-five thousand, nine hundred ninety-three".