12812379859 has 2 divisors, whose sum is σ = 12812379860. Its totient is φ = 12812379858.

The previous prime is 12812379857. The next prime is 12812379863. The reversal of 12812379859 is 95897321821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12812379859 - 2¹ = 12812379857 is a prime.

Together with 12812379857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12812379857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6406189929 + 6406189930.

It is an arithmetic number, because the mean of its divisors is an integer number (6406189930).

Almost surely, 2^12812379859 is an apocalyptic number.

12812379859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12812379859 is an equidigital number, since it uses as much as digits as its factorization.

12812379859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 55.

The spelling of 12812379859 in words is "twelve billion, eight hundred twelve million, three hundred seventy-nine thousand, eight hundred fifty-nine".