12763472809 has 2 divisors, whose sum is σ = 12763472810. Its totient is φ = 12763472808.

The previous prime is 12763472803. The next prime is 12763472819. The reversal of 12763472809 is 90827436721.

It is a happy number.

12763472809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11534760000 + 1228712809 = 107400^2 + 35053^2 .

It is a cyclic number.

It is not a de Polignac number, because 12763472809 - 2³¹ = 10615989161 is a prime.

It is not a weakly prime, because it can be changed into another prime (12763472803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6381736404 + 6381736405.

It is an arithmetic number, because the mean of its divisors is an integer number (6381736405).

Almost surely, 2^12763472809 is an apocalyptic number.

It is an amenable number.

12763472809 is a deficient number, since it is larger than the sum of its proper divisors (1).

12763472809 is an equidigital number, since it uses as much as digits as its factorization.

12763472809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The spelling of 12763472809 in words is "twelve billion, seven hundred sixty-three million, four hundred seventy-two thousand, eight hundred nine".