12845243683 has 4 divisors (see below), whose sum is σ = 13521309160. Its totient is φ = 12169178208.

The previous prime is 12845243681. The next prime is 12845243687. The reversal of 12845243683 is 38634254821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38634254821 = 14149 ⋅2730529.

It is a cyclic number.

It is not a de Polignac number, because 12845243683 - 2¹ = 12845243681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12845243681) 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, 338032710 + ... + 338032747.

It is an arithmetic number, because the mean of its divisors is an integer number (3380327290).

Almost surely, 2^12845243683 is an apocalyptic number.

12845243683 is a deficient number, since it is larger than the sum of its proper divisors (676065477).

12845243683 is an equidigital number, since it uses as much as digits as its factorization.

12845243683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676065476.

The product of its digits is 1105920, while the sum is 46.

The spelling of 12845243683 in words is "twelve billion, eight hundred forty-five million, two hundred forty-three thousand, six hundred eighty-three".