12604144429 has 2 divisors, whose sum is σ = 12604144430. Its totient is φ = 12604144428.

The previous prime is 12604144381. The next prime is 12604144447. The reversal of 12604144429 is 92444140621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12033651204 + 570493225 = 109698^2 + 23885^2 .

It is a cyclic number.

It is not a de Polignac number, because 12604144429 - 2¹¹ = 12604142381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12604144499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302072214 + 6302072215.

It is an arithmetic number, because the mean of its divisors is an integer number (6302072215).

Almost surely, 2^12604144429 is an apocalyptic number.

It is an amenable number.

12604144429 is a deficient number, since it is larger than the sum of its proper divisors (1).

12604144429 is an equidigital number, since it uses as much as digits as its factorization.

12604144429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 55296, while the sum is 37.

The spelling of 12604144429 in words is "twelve billion, six hundred four million, one hundred forty-four thousand, four hundred twenty-nine".