12722267867 has 2 divisors, whose sum is σ = 12722267868. Its totient is φ = 12722267866.

The previous prime is 12722267861. The next prime is 12722267879. The reversal of 12722267867 is 76876222721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12722267867 - 2²⁸ = 12453832411 is a prime.

It is not a weakly prime, because it can be changed into another prime (12722267861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6361133933 + 6361133934.

It is an arithmetic number, because the mean of its divisors is an integer number (6361133934).

Almost surely, 2^12722267867 is an apocalyptic number.

12722267867 is a deficient number, since it is larger than the sum of its proper divisors (1).

12722267867 is an equidigital number, since it uses as much as digits as its factorization.

12722267867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1580544, while the sum is 50.

The spelling of 12722267867 in words is "twelve billion, seven hundred twenty-two million, two hundred sixty-seven thousand, eight hundred sixty-seven".