744706456767809 has 2 divisors, whose sum is σ = 744706456767810. Its totient is φ = 744706456767808.

The previous prime is 744706456767733. The next prime is 744706456767853. The reversal of 744706456767809 is 908767654607447.

744706456767809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 743974884465409 + 731572302400 = 27275903^2 + 855320^2 .

It is a cyclic number.

It is not a de Polignac number, because 744706456767809 - 2⁴⁸ = 463231480057153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (744706456766809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372353228383904 + 372353228383905.

It is an arithmetic number, because the mean of its divisors is an integer number (372353228383905).

Almost surely, 2^{744706456767809} is an apocalyptic number.

It is an amenable number.

744706456767809 is a deficient number, since it is larger than the sum of its proper divisors (1).

744706456767809 is an equidigital number, since it uses as much as digits as its factorization.

744706456767809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11948912640, while the sum is 80.

The spelling of 744706456767809 in words is "seven hundred forty-four trillion, seven hundred six billion, four hundred fifty-six million, seven hundred sixty-seven thousand, eight hundred nine".