12267542429 has 2 divisors, whose sum is σ = 12267542430. Its totient is φ = 12267542428.

The previous prime is 12267542393. The next prime is 12267542447. The reversal of 12267542429 is 92424576221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10922340100 + 1345202329 = 104510^2 + 36677^2 .

It is an emirp because it is prime and its reverse (92424576221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12267542429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12267542429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12267542459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6133771214 + 6133771215.

It is an arithmetic number, because the mean of its divisors is an integer number (6133771215).

Almost surely, 2^12267542429 is an apocalyptic number.

It is an amenable number.

12267542429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12267542429 is an equidigital number, since it uses as much as digits as its factorization.

12267542429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 44.

The spelling of 12267542429 in words is "twelve billion, two hundred sixty-seven million, five hundred forty-two thousand, four hundred twenty-nine".