744387555689 has 8 divisors (see below), whose sum is σ = 746416980672. Its totient is φ = 742358311920.

The previous prime is 744387555679. The next prime is 744387555697. The reversal of 744387555689 is 986555783447.

744387555689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 744387555689 - 2⁸ = 744387555433 is a prime.

It is a super-2 number, since 2×744387555689² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (744387555679) 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, 14447804 + ... + 14499234.

It is an arithmetic number, because the mean of its divisors is an integer number (93302122584).

Almost surely, 2^744387555689 is an apocalyptic number.

It is an amenable number.

744387555689 is a deficient number, since it is larger than the sum of its proper divisors (2029424983).

744387555689 is a wasteful number, since it uses less digits than its factorization.

744387555689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90607.

The product of its digits is 1016064000, while the sum is 71.

The spelling of 744387555689 in words is "seven hundred forty-four billion, three hundred eighty-seven million, five hundred fifty-five thousand, six hundred eighty-nine".