12673840353 has 4 divisors (see below), whose sum is σ = 16898453808. Its totient is φ = 8449226900.

The previous prime is 12673840321. The next prime is 12673840379. The reversal of 12673840353 is 35304837621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35304837621 = 3 ⋅11768279207.

It is a cyclic number.

It is not a de Polignac number, because 12673840353 - 2⁵ = 12673840321 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12673830353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2112306723 + ... + 2112306728.

It is an arithmetic number, because the mean of its divisors is an integer number (4224613452).

Almost surely, 2^12673840353 is an apocalyptic number.

It is an amenable number.

12673840353 is a deficient number, since it is larger than the sum of its proper divisors (4224613455).

12673840353 is an equidigital number, since it uses as much as digits as its factorization.

12673840353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224613454.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 12673840353 in words is "twelve billion, six hundred seventy-three million, eight hundred forty thousand, three hundred fifty-three".