12444431433 has 16 divisors (see below), whose sum is σ = 18990729216. Its totient is φ = 7100683920.

The previous prime is 12444431411. The next prime is 12444431459. The reversal of 12444431433 is 33413444421.

It is not a de Polignac number, because 12444431433 - 2⁸ = 12444431177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12444431394 and 12444431403.

It is not an unprimeable number, because it can be changed into a prime (12444431333) 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, 419473 + ... + 448158.

It is an arithmetic number, because the mean of its divisors is an integer number (1186920576).

Almost surely, 2^12444431433 is an apocalyptic number.

It is an amenable number.

12444431433 is a deficient number, since it is larger than the sum of its proper divisors (6546297783).

12444431433 is an equidigital number, since it uses as much as digits as its factorization.

12444431433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868324.

The product of its digits is 55296, while the sum is 33.

Adding to 12444431433 its reverse (33413444421), we get a palindrome (45857875854).

The spelling of 12444431433 in words is "twelve billion, four hundred forty-four million, four hundred thirty-one thousand, four hundred thirty-three".