12431857859 has 2 divisors, whose sum is σ = 12431857860. Its totient is φ = 12431857858.

The previous prime is 12431857853. The next prime is 12431857861. The reversal of 12431857859 is 95875813421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12431857859 - 2⁴ = 12431857843 is a prime.

Together with 12431857861, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12431857859.

It is not a weakly prime, because it can be changed into another prime (12431857853) 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, 6215928929 + 6215928930.

It is an arithmetic number, because the mean of its divisors is an integer number (6215928930).

Almost surely, 2^12431857859 is an apocalyptic number.

12431857859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431857859 is an equidigital number, since it uses as much as digits as its factorization.

12431857859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 53.

The spelling of 12431857859 in words is "twelve billion, four hundred thirty-one million, eight hundred fifty-seven thousand, eight hundred fifty-nine".