12726901470197 has 2 divisors, whose sum is σ = 12726901470198. Its totient is φ = 12726901470196.

The previous prime is 12726901470187. The next prime is 12726901470211. The reversal of 12726901470197 is 79107410962721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12472523469316 + 254378000881 = 3531646^2 + 504359^2 .

It is an emirp because it is prime and its reverse (79107410962721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12726901470197 - 2²⁴ = 12726884692981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12726901470137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6363450735098 + 6363450735099.

It is an arithmetic number, because the mean of its divisors is an integer number (6363450735099).

Almost surely, 2^{12726901470197} is an apocalyptic number.

It is an amenable number.

12726901470197 is a deficient number, since it is larger than the sum of its proper divisors (1).

12726901470197 is an equidigital number, since it uses as much as digits as its factorization.

12726901470197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2667168, while the sum is 56.

The spelling of 12726901470197 in words is "twelve trillion, seven hundred twenty-six billion, nine hundred one million, four hundred seventy thousand, one hundred ninety-seven".