12276191429 has 2 divisors, whose sum is σ = 12276191430. Its totient is φ = 12276191428.

The previous prime is 12276191401. The next prime is 12276191449. The reversal of 12276191429 is 92419167221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10546879204 + 1729312225 = 102698^2 + 41585^2 .

It is a cyclic number.

It is not a de Polignac number, because 12276191429 - 2²⁰ = 12275142853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12276191429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12276191449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6138095714 + 6138095715.

It is an arithmetic number, because the mean of its divisors is an integer number (6138095715).

Almost surely, 2^12276191429 is an apocalyptic number.

It is an amenable number.

12276191429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12276191429 is an equidigital number, since it uses as much as digits as its factorization.

12276191429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 44.

The spelling of 12276191429 in words is "twelve billion, two hundred seventy-six million, one hundred ninety-one thousand, four hundred twenty-nine".