744217712447 has 24 divisors (see below), whose sum is σ = 840466208400. Its totient is φ = 658237155840.

The previous prime is 744217712419. The next prime is 744217712479.

744217712447 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 744217712447 - 2⁸ = 744217712191 is a prime.

It is a super-3 number, since 3×744217712447³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 744217712395 and 744217712404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744217012447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155129 + ... + 1229837.

It is an arithmetic number, because the mean of its divisors is an integer number (35019425350).

Almost surely, 2^744217712447 is an apocalyptic number.

744217712447 is a deficient number, since it is larger than the sum of its proper divisors (96248495953).

744217712447 is a wasteful number, since it uses less digits than its factorization.

744217712447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074887 (or 1074876 counting only the distinct ones).

The product of its digits is 2458624, while the sum is 50.

The spelling of 744217712447 in words is "seven hundred forty-four billion, two hundred seventeen million, seven hundred twelve thousand, four hundred forty-seven".