12400418047 has 2 divisors, whose sum is σ = 12400418048. Its totient is φ = 12400418046.

The previous prime is 12400418011. The next prime is 12400418081. The reversal of 12400418047 is 74081400421.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12400418047 - 2⁷ = 12400417919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12400415047) by changing a digit.

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 as a sum of consecutive naturals, namely, 6200209023 + 6200209024.

It is an arithmetic number, because the mean of its divisors is an integer number (6200209024).

Almost surely, 2^12400418047 is an apocalyptic number.

12400418047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12400418047 is an equidigital number, since it uses as much as digits as its factorization.

12400418047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7168, while the sum is 31.

Adding to 12400418047 its reverse (74081400421), we get a palindrome (86481818468).

The spelling of 12400418047 in words is "twelve billion, four hundred million, four hundred eighteen thousand, forty-seven".