12127735871 has 2 divisors, whose sum is σ = 12127735872. Its totient is φ = 12127735870.

The previous prime is 12127735813. The next prime is 12127735901. The reversal of 12127735871 is 17853772121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12127735871 - 2¹⁰ = 12127734847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12127785871) 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, 6063867935 + 6063867936.

It is an arithmetic number, because the mean of its divisors is an integer number (6063867936).

Almost surely, 2^12127735871 is an apocalyptic number.

12127735871 is a deficient number, since it is larger than the sum of its proper divisors (1).

12127735871 is an equidigital number, since it uses as much as digits as its factorization.

12127735871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 164640, while the sum is 44.

The spelling of 12127735871 in words is "twelve billion, one hundred twenty-seven million, seven hundred thirty-five thousand, eight hundred seventy-one".