12525431444 has 6 divisors (see below), whose sum is σ = 21919505034. Its totient is φ = 6262715720.

The previous prime is 12525431419. The next prime is 12525431453. The reversal of 12525431444 is 44413452521.

It is a happy number.

12525431444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 10623424900 + 1902006544 = 103070^2 + 43612^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1565678927 + ... + 1565678934.

It is an arithmetic number, because the mean of its divisors is an integer number (3653250839).

Almost surely, 2^12525431444 is an apocalyptic number.

It is an amenable number.

12525431444 is a deficient number, since it is larger than the sum of its proper divisors (9394073590).

12525431444 is a wasteful number, since it uses less digits than its factorization.

12525431444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131357865 (or 3131357863 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

Adding to 12525431444 its reverse (44413452521), we get a palindrome (56938883965).

The spelling of 12525431444 in words is "twelve billion, five hundred twenty-five million, four hundred thirty-one thousand, four hundred forty-four".