12823678163 has 4 divisors (see below), whose sum is σ = 12921568968. Its totient is φ = 12725787360.

The previous prime is 12823678097. The next prime is 12823678183. The reversal of 12823678163 is 36187632821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36187632821 = 8233 ⋅4395437.

It is a cyclic number.

It is not a de Polignac number, because 12823678163 - 2¹⁸ = 12823416019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12823678183) 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, 48945206 + ... + 48945467.

It is an arithmetic number, because the mean of its divisors is an integer number (3230392242).

Almost surely, 2^12823678163 is an apocalyptic number.

12823678163 is a deficient number, since it is larger than the sum of its proper divisors (97890805).

12823678163 is an equidigital number, since it uses as much as digits as its factorization.

12823678163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97890804.

The product of its digits is 580608, while the sum is 47.

The spelling of 12823678163 in words is "twelve billion, eight hundred twenty-three million, six hundred seventy-eight thousand, one hundred sixty-three".