12863689331 has 2 divisors, whose sum is σ = 12863689332. Its totient is φ = 12863689330.

The previous prime is 12863689313. The next prime is 12863689451. The reversal of 12863689331 is 13398636821.

Together with previous prime (12863689313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12863689331 - 2¹⁴ = 12863672947 is a prime.

It is a super-2 number, since 2×12863689331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12863689331.

It is not a weakly prime, because it can be changed into another prime (12863689031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6431844665 + 6431844666.

It is an arithmetic number, because the mean of its divisors is an integer number (6431844666).

Almost surely, 2^12863689331 is an apocalyptic number.

12863689331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12863689331 is an equidigital number, since it uses as much as digits as its factorization.

12863689331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 50.

The spelling of 12863689331 in words is "twelve billion, eight hundred sixty-three million, six hundred eighty-nine thousand, three hundred thirty-one".