12437443225 has 12 divisors (see below), whose sum is σ = 16234137040. Its totient is φ = 9426272400.

The previous prime is 12437443211. The next prime is 12437443229. The reversal of 12437443225 is 52234473421.

It is not a de Polignac number, because 12437443225 - 2⁷ = 12437443097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12437443229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13091571 + ... + 13092520.

Almost surely, 2^12437443225 is an apocalyptic number.

It is an amenable number.

12437443225 is a deficient number, since it is larger than the sum of its proper divisors (3796693815).

12437443225 is a wasteful number, since it uses less digits than its factorization.

12437443225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26184120 (or 26184115 counting only the distinct ones).

The product of its digits is 161280, while the sum is 37.

The spelling of 12437443225 in words is "twelve billion, four hundred thirty-seven million, four hundred forty-three thousand, two hundred twenty-five".