12444431444 has 24 divisors (see below), whose sum is σ = 22929577440. Its totient is φ = 5893284384.

The previous prime is 12444431411. The next prime is 12444431459. The reversal of 12444431444 is 44413444421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332042 + ... + 367614.

It is an arithmetic number, because the mean of its divisors is an integer number (955399060).

Almost surely, 2^12444431444 is an apocalyptic number.

It is an amenable number.

12444431444 is a deficient number, since it is larger than the sum of its proper divisors (10485145996).

12444431444 is a wasteful number, since it uses less digits than its factorization.

12444431444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40199 (or 40197 counting only the distinct ones).

The product of its digits is 98304, while the sum is 35.

Adding to 12444431444 its reverse (44413444421), we get a palindrome (56857875865).

The spelling of 12444431444 in words is "twelve billion, four hundred forty-four million, four hundred thirty-one thousand, four hundred forty-four".