744228859969 has 27 divisors (see below), whose sum is σ = 870972367233. Its totient is φ = 634074945000.

The previous prime is 744228859963. The next prime is 744228859991. The reversal of 744228859969 is 969958822447.

The square root of 744228859969 is 862687.

It is a perfect power (a square), and thus also a powerful number.

744228859969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 744228859969 - 2⁹ = 744228859457 is a prime.

It is a super-2 number, since 2×744228859969² (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 (744228859963) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1515740814 + ... + 1515741304.

Almost surely, 2^744228859969 is an apocalyptic number.

744228859969 is the 862687-th square number.

744228859969 is the 431344-th centered octagonal number.

It is an amenable number.

744228859969 is a deficient number, since it is larger than the sum of its proper divisors (126743507264).

744228859969 is an frugal number, since it uses more digits than its factorization.

744228859969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498 (or 749 counting only the distinct ones).

The product of its digits is 627056640, while the sum is 73.

The spelling of 744228859969 in words is "seven hundred forty-four billion, two hundred twenty-eight million, eight hundred fifty-nine thousand, nine hundred sixty-nine".