12711611561269 has 2 divisors, whose sum is σ = 12711611561270. Its totient is φ = 12711611561268.

The previous prime is 12711611561267. The next prime is 12711611561371. The reversal of 12711611561269 is 96216511611721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10300004447044 + 2411607114225 = 3209362^2 + 1552935^2 .

It is a cyclic number.

It is not a de Polignac number, because 12711611561269 - 2¹ = 12711611561267 is a prime.

It is a super-2 number, since 2×12711611561269² (a number of 27 digits) contains 22 as substring.

Together with 12711611561267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12711611561267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6355805780634 + 6355805780635.

It is an arithmetic number, because the mean of its divisors is an integer number (6355805780635).

Almost surely, 2^{12711611561269} is an apocalyptic number.

It is an amenable number.

12711611561269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12711611561269 is an equidigital number, since it uses as much as digits as its factorization.

12711611561269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 49.

The spelling of 12711611561269 in words is "twelve trillion, seven hundred eleven billion, six hundred eleven million, five hundred sixty-one thousand, two hundred sixty-nine".