744643284709 has 2 divisors, whose sum is σ = 744643284710. Its totient is φ = 744643284708.

The previous prime is 744643284683. The next prime is 744643284727. The reversal of 744643284709 is 907482346447.

It is a happy number.

744643284709 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., 494178068484 + 250465216225 = 702978^2 + 500465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-744643284709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (744643284739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 372321642354 + 372321642355.

It is an arithmetic number, because the mean of its divisors is an integer number (372321642355).

Almost surely, 2^744643284709 is an apocalyptic number.

It is an amenable number.

744643284709 is a deficient number, since it is larger than the sum of its proper divisors (1).

744643284709 is an equidigital number, since it uses as much as digits as its factorization.

744643284709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32514048, while the sum is 58.

The spelling of 744643284709 in words is "seven hundred forty-four billion, six hundred forty-three million, two hundred eighty-four thousand, seven hundred nine".