744664466447 has 8 divisors (see below), whose sum is σ = 812389616640. Its totient is φ = 676944046360.

The previous prime is 744664466437. The next prime is 744664466471.

It is a happy number.

744664466447 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-744664466447 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 744664466447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744664466437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 849263 + ... + 1486800.

It is an arithmetic number, because the mean of its divisors is an integer number (101548702080).

Almost surely, 2^744664466447 is an apocalyptic number.

744664466447 is a deficient number, since it is larger than the sum of its proper divisors (67725150193).

744664466447 is a wasteful number, since it uses less digits than its factorization.

744664466447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365053.

The product of its digits is 260112384, while the sum is 62.

The spelling of 744664466447 in words is "seven hundred forty-four billion, six hundred sixty-four million, four hundred sixty-six thousand, four hundred forty-seven".