744518649969 has 12 divisors (see below), whose sum is σ = 1076019000576. Its totient is φ = 496067379192.

The previous prime is 744518649943. The next prime is 744518649977. The reversal of 744518649969 is 969946815447.

744518649969 is a `hidden beast` number, since 7 + 4 + 4 + 51 + 86 + 499 + 6 + 9 = 666.

It is not a de Polignac number, because 744518649969 - 2⁷ = 744518649841 is a prime.

It is a super-2 number, since 2×744518649969² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 744518649897 and 744518649906.

It is not an unprimeable number, because it can be changed into a prime (744518649929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23182017 + ... + 23214110.

It is an arithmetic number, because the mean of its divisors is an integer number (89668250048).

Almost surely, 2^744518649969 is an apocalyptic number.

It is an amenable number.

744518649969 is a deficient number, since it is larger than the sum of its proper divisors (331500350607).

744518649969 is a wasteful number, since it uses less digits than its factorization.

744518649969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46397916 (or 46397913 counting only the distinct ones).

The product of its digits is 470292480, while the sum is 72.

The spelling of 744518649969 in words is "seven hundred forty-four billion, five hundred eighteen million, six hundred forty-nine thousand, nine hundred sixty-nine".