12604144447 has 2 divisors, whose sum is σ = 12604144448. Its totient is φ = 12604144446.

The previous prime is 12604144429. The next prime is 12604144499. The reversal of 12604144447 is 74444140621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12604144447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12604141447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302072223 + 6302072224.

It is an arithmetic number, because the mean of its divisors is an integer number (6302072224).

Almost surely, 2^12604144447 is an apocalyptic number.

12604144447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12604144447 is an equidigital number, since it uses as much as digits as its factorization.

12604144447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86016, while the sum is 37.

The spelling of 12604144447 in words is "twelve billion, six hundred four million, one hundred forty-four thousand, four hundred forty-seven".