12886398727 has 2 divisors, whose sum is σ = 12886398728. Its totient is φ = 12886398726.

The previous prime is 12886398677. The next prime is 12886398757. The reversal of 12886398727 is 72789368821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12886398727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12886398757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443199363 + 6443199364.

It is an arithmetic number, because the mean of its divisors is an integer number (6443199364).

Almost surely, 2^12886398727 is an apocalyptic number.

12886398727 is a deficient number, since it is larger than the sum of its proper divisors (1).

12886398727 is an equidigital number, since it uses as much as digits as its factorization.

12886398727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16257024, while the sum is 61.

The spelling of 12886398727 in words is "twelve billion, eight hundred eighty-six million, three hundred ninety-eight thousand, seven hundred twenty-seven".