12234444457 has 4 divisors (see below), whose sum is σ = 12565105156. Its totient is φ = 11903783760.

The previous prime is 12234444433. The next prime is 12234444473. The reversal of 12234444457 is 75444443221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11435308096 + 799136361 = 106936^2 + 28269^2 .

It is a cyclic number.

It is not a de Polignac number, because 12234444457 - 2³¹ = 10086960809 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (12234444427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165330294 + ... + 165330367.

It is an arithmetic number, because the mean of its divisors is an integer number (3141276289).

Almost surely, 2^12234444457 is an apocalyptic number.

It is an amenable number.

12234444457 is a deficient number, since it is larger than the sum of its proper divisors (330660699).

12234444457 is an equidigital number, since it uses as much as digits as its factorization.

12234444457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330660698.

The product of its digits is 430080, while the sum is 40.

Adding to 12234444457 its reverse (75444443221), we get a palindrome (87678887678).

The spelling of 12234444457 in words is "twelve billion, two hundred thirty-four million, four hundred forty-four thousand, four hundred fifty-seven".