12838644353 has 2 divisors, whose sum is σ = 12838644354. Its totient is φ = 12838644352.

The previous prime is 12838644349. The next prime is 12838644419. The reversal of 12838644353 is 35344683821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12638930929 + 199713424 = 112423^2 + 14132^2 .

It is a cyclic number.

It is not a de Polignac number, because 12838644353 - 2² = 12838644349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12838644298 and 12838644307.

It is not a weakly prime, because it can be changed into another prime (12838644323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6419322176 + 6419322177.

It is an arithmetic number, because the mean of its divisors is an integer number (6419322177).

Almost surely, 2^12838644353 is an apocalyptic number.

It is an amenable number.

12838644353 is a deficient number, since it is larger than the sum of its proper divisors (1).

12838644353 is an equidigital number, since it uses as much as digits as its factorization.

12838644353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 47.

The spelling of 12838644353 in words is "twelve billion, eight hundred thirty-eight million, six hundred forty-four thousand, three hundred fifty-three".