12650869871 has 2 divisors, whose sum is σ = 12650869872. Its totient is φ = 12650869870.

The previous prime is 12650869843. The next prime is 12650869879. The reversal of 12650869871 is 17896805621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12650869871 - 2¹⁸ = 12650607727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12650869879) 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, 6325434935 + 6325434936.

It is an arithmetic number, because the mean of its divisors is an integer number (6325434936).

Almost surely, 2^12650869871 is an apocalyptic number.

12650869871 is a deficient number, since it is larger than the sum of its proper divisors (1).

12650869871 is an equidigital number, since it uses as much as digits as its factorization.

12650869871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 12650869871 in words is "twelve billion, six hundred fifty million, eight hundred sixty-nine thousand, eight hundred seventy-one".