12663427873 has 2 divisors, whose sum is σ = 12663427874. Its totient is φ = 12663427872.

The previous prime is 12663427867. The next prime is 12663427877. The reversal of 12663427873 is 37872436621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12402831424 + 260596449 = 111368^2 + 16143^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12663427873 is a prime.

It is not a weakly prime, because it can be changed into another prime (12663427877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331713936 + 6331713937.

It is an arithmetic number, because the mean of its divisors is an integer number (6331713937).

Almost surely, 2^12663427873 is an apocalyptic number.

It is an amenable number.

12663427873 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663427873 is an equidigital number, since it uses as much as digits as its factorization.

12663427873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2032128, while the sum is 49.

The spelling of 12663427873 in words is "twelve billion, six hundred sixty-three million, four hundred twenty-seven thousand, eight hundred seventy-three".