12385718227 has 4 divisors (see below), whose sum is σ = 12386513056. Its totient is φ = 12384923400.

The previous prime is 12385718161. The next prime is 12385718251. The reversal of 12385718227 is 72281758321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72281758321 = 203461 ⋅355261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12385718227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12385718627) 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, 373563 + ... + 405364.

It is an arithmetic number, because the mean of its divisors is an integer number (3096628264).

Almost surely, 2^12385718227 is an apocalyptic number.

12385718227 is a deficient number, since it is larger than the sum of its proper divisors (794829).

12385718227 is an equidigital number, since it uses as much as digits as its factorization.

12385718227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794828.

The product of its digits is 376320, while the sum is 46.

The spelling of 12385718227 in words is "twelve billion, three hundred eighty-five million, seven hundred eighteen thousand, two hundred twenty-seven".