12853446329 has 2 divisors, whose sum is σ = 12853446330. Its totient is φ = 12853446328.

The previous prime is 12853446301. The next prime is 12853446349. The reversal of 12853446329 is 92364435821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8776879225 + 4076567104 = 93685^2 + 63848^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12853446329 is a prime.

It is a super-2 number, since 2×12853446329² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12853446349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6426723164 + 6426723165.

It is an arithmetic number, because the mean of its divisors is an integer number (6426723165).

Almost surely, 2^12853446329 is an apocalyptic number.

It is an amenable number.

12853446329 is a deficient number, since it is larger than the sum of its proper divisors (1).

12853446329 is an equidigital number, since it uses as much as digits as its factorization.

12853446329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 47.

The spelling of 12853446329 in words is "twelve billion, eight hundred fifty-three million, four hundred forty-six thousand, three hundred twenty-nine".