12700644067277 has 2 divisors, whose sum is σ = 12700644067278. Its totient is φ = 12700644067276.

The previous prime is 12700644067253. The next prime is 12700644067283. The reversal of 12700644067277 is 77276044600721.

12700644067277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11394547087561 + 1306096979716 = 3375581^2 + 1142846^2 .

It is an emirp because it is prime and its reverse (77276044600721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12700644067277 - 2¹⁶ = 12700644001741 is a prime.

It is a super-2 number, since 2×12700644067277² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12700644060277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6350322033638 + 6350322033639.

It is an arithmetic number, because the mean of its divisors is an integer number (6350322033639).

Almost surely, 2^{12700644067277} is an apocalyptic number.

It is an amenable number.

12700644067277 is a deficient number, since it is larger than the sum of its proper divisors (1).

12700644067277 is an equidigital number, since it uses as much as digits as its factorization.

12700644067277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5531904, while the sum is 53.

Adding to 12700644067277 its reverse (77276044600721), we get a palindrome (89976688667998).

The spelling of 12700644067277 in words is "twelve trillion, seven hundred billion, six hundred forty-four million, sixty-seven thousand, two hundred seventy-seven".