12663436277 has 2 divisors, whose sum is σ = 12663436278. Its totient is φ = 12663436276.

The previous prime is 12663436213. The next prime is 12663436297. The reversal of 12663436277 is 77263436621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12659400196 + 4036081 = 112514^2 + 2009^2 .

It is a cyclic number.

It is not a de Polignac number, because 12663436277 - 2⁶ = 12663436213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12663436207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331718138 + 6331718139.

It is an arithmetic number, because the mean of its divisors is an integer number (6331718139).

Almost surely, 2^12663436277 is an apocalyptic number.

It is an amenable number.

12663436277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12663436277 is an equidigital number, since it uses as much as digits as its factorization.

12663436277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 47.

The spelling of 12663436277 in words is "twelve billion, six hundred sixty-three million, four hundred thirty-six thousand, two hundred seventy-seven".