12318266887 has 2 divisors, whose sum is σ = 12318266888. Its totient is φ = 12318266886.

The previous prime is 12318266879. The next prime is 12318266953. The reversal of 12318266887 is 78866281321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12318266887 - 2³ = 12318266879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12318264887) 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 as a sum of consecutive naturals, namely, 6159133443 + 6159133444.

It is an arithmetic number, because the mean of its divisors is an integer number (6159133444).

Almost surely, 2^12318266887 is an apocalyptic number.

12318266887 is a deficient number, since it is larger than the sum of its proper divisors (1).

12318266887 is an equidigital number, since it uses as much as digits as its factorization.

12318266887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 52.

The spelling of 12318266887 in words is "twelve billion, three hundred eighteen million, two hundred sixty-six thousand, eight hundred eighty-seven".