12771565759 has 2 divisors, whose sum is σ = 12771565760. Its totient is φ = 12771565758.

The previous prime is 12771565757. The next prime is 12771565777. The reversal of 12771565759 is 95756517721.

It is a weak prime.

It is an emirp because it is prime and its reverse (95756517721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12771565759 - 2¹ = 12771565757 is a prime.

It is a super-2 number, since 2×12771565759² (a number of 21 digits) contains 22 as substring.

Together with 12771565757, 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 (12771565757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6385782879 + 6385782880.

It is an arithmetic number, because the mean of its divisors is an integer number (6385782880).

Almost surely, 2^12771565759 is an apocalyptic number.

12771565759 is a deficient number, since it is larger than the sum of its proper divisors (1).

12771565759 is an equidigital number, since it uses as much as digits as its factorization.

12771565759 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4630500, while the sum is 55.

The spelling of 12771565759 in words is "twelve billion, seven hundred seventy-one million, five hundred sixty-five thousand, seven hundred fifty-nine".