12387455429 has 2 divisors, whose sum is σ = 12387455430. Its totient is φ = 12387455428.

The previous prime is 12387455411. The next prime is 12387455459. The reversal of 12387455429 is 92455478321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9907216225 + 2480239204 = 99535^2 + 49802^2 .

It is an emirp because it is prime and its reverse (92455478321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12387455429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12387455459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6193727714 + 6193727715.

It is an arithmetic number, because the mean of its divisors is an integer number (6193727715).

Almost surely, 2^12387455429 is an apocalyptic number.

It is an amenable number.

12387455429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12387455429 is an equidigital number, since it uses as much as digits as its factorization.

12387455429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 50.

The spelling of 12387455429 in words is "twelve billion, three hundred eighty-seven million, four hundred fifty-five thousand, four hundred twenty-nine".