744345543447 has 16 divisors (see below), whose sum is σ = 1202982696960. Its totient is φ = 451118511000.

The previous prime is 744345543379. The next prime is 744345543457.

It is a happy number.

744345543447 is a `hidden beast` number, since 7 + 4 + 43 + 4 + 554 + 3 + 4 + 47 = 666.

744345543447 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 744345543447 - 2¹⁵ = 744345510679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 744345543393 and 744345543402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (744345543457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1253106679 + ... + 1253107272.

It is an arithmetic number, because the mean of its divisors is an integer number (75186418560).

Almost surely, 2^744345543447 is an apocalyptic number.

744345543447 is a deficient number, since it is larger than the sum of its proper divisors (458637153513).

744345543447 is a wasteful number, since it uses less digits than its factorization.

744345543447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506213971 (or 2506213965 counting only the distinct ones).

The product of its digits is 45158400, while the sum is 54.

The spelling of 744345543447 in words is "seven hundred forty-four billion, three hundred forty-five million, five hundred forty-three thousand, four hundred forty-seven".