12861852127 has 2 divisors, whose sum is σ = 12861852128. Its totient is φ = 12861852126.

The previous prime is 12861852119. The next prime is 12861852131. The reversal of 12861852127 is 72125816821.

It is a strong prime.

It is an emirp because it is prime and its reverse (72125816821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12861852127 - 2³ = 12861852119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12861852187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6430926063 + 6430926064.

It is an arithmetic number, because the mean of its divisors is an integer number (6430926064).

Almost surely, 2^12861852127 is an apocalyptic number.

12861852127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12861852127 is an equidigital number, since it uses as much as digits as its factorization.

12861852127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 107520, while the sum is 43.

The spelling of 12861852127 in words is "twelve billion, eight hundred sixty-one million, eight hundred fifty-two thousand, one hundred twenty-seven".