12673736563 has 2 divisors, whose sum is σ = 12673736564. Its totient is φ = 12673736562.

The previous prime is 12673736557. The next prime is 12673736587. The reversal of 12673736563 is 36563737621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12673736563 - 2⁹ = 12673736051 is a prime.

It is not a weakly prime, because it can be changed into another prime (12673736063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6336868281 + 6336868282.

It is an arithmetic number, because the mean of its divisors is an integer number (6336868282).

Almost surely, 2^12673736563 is an apocalyptic number.

12673736563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12673736563 is an equidigital number, since it uses as much as digits as its factorization.

12673736563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2857680, while the sum is 49.

The spelling of 12673736563 in words is "twelve billion, six hundred seventy-three million, seven hundred thirty-six thousand, five hundred sixty-three".