744868156709 has 4 divisors (see below), whose sum is σ = 745590629280. Its totient is φ = 744145684140.

The previous prime is 744868156673. The next prime is 744868156741. The reversal of 744868156709 is 907651868447.

744868156709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-744868156709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744868156789) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361234739 + ... + 361236800.

It is an arithmetic number, because the mean of its divisors is an integer number (186397657320).

Almost surely, 2^744868156709 is an apocalyptic number.

It is an amenable number.

744868156709 is a deficient number, since it is larger than the sum of its proper divisors (722472571).

744868156709 is a wasteful number, since it uses less digits than its factorization.

744868156709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722472570.

The product of its (nonzero) digits is 81285120, while the sum is 65.

The spelling of 744868156709 in words is "seven hundred forty-four billion, eight hundred sixty-eight million, one hundred fifty-six thousand, seven hundred nine".