12650869831 has 2 divisors, whose sum is σ = 12650869832. Its totient is φ = 12650869830.

The previous prime is 12650869823. The next prime is 12650869843. The reversal of 12650869831 is 13896805621.

12650869831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (13896805621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12650869831 - 2³ = 12650869823 is a prime.

It is a super-2 number, since 2×12650869831² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12650869811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6325434915 + 6325434916.

It is an arithmetic number, because the mean of its divisors is an integer number (6325434916).

Almost surely, 2^12650869831 is an apocalyptic number.

12650869831 is a deficient number, since it is larger than the sum of its proper divisors (1).

12650869831 is an equidigital number, since it uses as much as digits as its factorization.

12650869831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 49.

The spelling of 12650869831 in words is "twelve billion, six hundred fifty million, eight hundred sixty-nine thousand, eight hundred thirty-one".