12604451273 has 2 divisors, whose sum is σ = 12604451274. Its totient is φ = 12604451272.

The previous prime is 12604451267. The next prime is 12604451303. The reversal of 12604451273 is 37215440621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9148539904 + 3455911369 = 95648^2 + 58787^2 .

It is an emirp because it is prime and its reverse (37215440621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12604451273 - 2¹⁴ = 12604434889 is a prime.

It is not a weakly prime, because it can be changed into another prime (12604451243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6302225636 + 6302225637.

It is an arithmetic number, because the mean of its divisors is an integer number (6302225637).

Almost surely, 2^12604451273 is an apocalyptic number.

It is an amenable number.

12604451273 is a deficient number, since it is larger than the sum of its proper divisors (1).

12604451273 is an equidigital number, since it uses as much as digits as its factorization.

12604451273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 35.

Adding to 12604451273 its reverse (37215440621), we get a palindrome (49819891894).

The spelling of 12604451273 in words is "twelve billion, six hundred four million, four hundred fifty-one thousand, two hundred seventy-three".