12278141269 has 2 divisors, whose sum is σ = 12278141270. Its totient is φ = 12278141268.

The previous prime is 12278141261. The next prime is 12278141311. The reversal of 12278141269 is 96214187221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10745810244 + 1532331025 = 103662^2 + 39145^2 .

It is a cyclic number.

It is not a de Polignac number, because 12278141269 - 2³ = 12278141261 is a prime.

It is a super-2 number, since 2×12278141269² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12278141261) 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, 6139070634 + 6139070635.

It is an arithmetic number, because the mean of its divisors is an integer number (6139070635).

Almost surely, 2^12278141269 is an apocalyptic number.

It is an amenable number.

12278141269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12278141269 is an equidigital number, since it uses as much as digits as its factorization.

12278141269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 43.

The spelling of 12278141269 in words is "twelve billion, two hundred seventy-eight million, one hundred forty-one thousand, two hundred sixty-nine".