12344252405 has 12 divisors (see below), whose sum is σ = 15633775692. Its totient is φ = 9355642560.

The previous prime is 12344252387. The next prime is 12344252411. The reversal of 12344252405 is 50425244321.

It can be written as a sum of positive squares in 2 ways, for example, as 2272524241 + 10071728164 = 47671^2 + 100358^2 .

It is not a de Polignac number, because 12344252405 - 2⁶ = 12344252341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3417656 + ... + 3421265.

It is an arithmetic number, because the mean of its divisors is an integer number (1302814641).

Almost surely, 2^12344252405 is an apocalyptic number.

It is an amenable number.

12344252405 is a deficient number, since it is larger than the sum of its proper divisors (3289523287).

12344252405 is an equidigital number, since it uses as much as digits as its factorization.

12344252405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6838964 (or 6838945 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 12344252405 its reverse (50425244321), we get a palindrome (62769496726).

The spelling of 12344252405 in words is "twelve billion, three hundred forty-four million, two hundred fifty-two thousand, four hundred five".