12672033806489 has 2 divisors, whose sum is σ = 12672033806490. Its totient is φ = 12672033806488.

The previous prime is 12672033806447. The next prime is 12672033806519. The reversal of 12672033806489 is 98460833027621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7317863574025 + 5354170232464 = 2705155^2 + 2313908^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12672033806489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12672033806989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6336016903244 + 6336016903245.

It is an arithmetic number, because the mean of its divisors is an integer number (6336016903245).

Almost surely, 2^{12672033806489} is an apocalyptic number.

It is an amenable number.

12672033806489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12672033806489 is an equidigital number, since it uses as much as digits as its factorization.

12672033806489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 12672033806489 in words is "twelve trillion, six hundred seventy-two billion, thirty-three million, eight hundred six thousand, four hundred eighty-nine".