12199859857 has 2 divisors, whose sum is σ = 12199859858. Its totient is φ = 12199859856.

The previous prime is 12199859839. The next prime is 12199859863. The reversal of 12199859857 is 75895899121.

12199859857 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7138391121 + 5061468736 = 84489^2 + 71144^2 .

It is a cyclic number.

It is not a de Polignac number, because 12199859857 - 2²³ = 12191471249 is a prime.

It is not a weakly prime, because it can be changed into another prime (12199859897) 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, 6099929928 + 6099929929.

It is an arithmetic number, because the mean of its divisors is an integer number (6099929929).

Almost surely, 2^12199859857 is an apocalyptic number.

It is an amenable number.

12199859857 is a deficient number, since it is larger than the sum of its proper divisors (1).

12199859857 is an equidigital number, since it uses as much as digits as its factorization.

12199859857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16329600, while the sum is 64.

The spelling of 12199859857 in words is "twelve billion, one hundred ninety-nine million, eight hundred fifty-nine thousand, eight hundred fifty-seven".