12659619227 has 4 divisors (see below), whose sum is σ = 13001771136. Its totient is φ = 12317467320.

The previous prime is 12659619179. The next prime is 12659619233. The reversal of 12659619227 is 72291695621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12659619227 - 2¹⁶ = 12659553691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12659639227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171075899 + ... + 171075972.

It is an arithmetic number, because the mean of its divisors is an integer number (3250442784).

Almost surely, 2^12659619227 is an apocalyptic number.

12659619227 is a deficient number, since it is larger than the sum of its proper divisors (342151909).

12659619227 is an equidigital number, since it uses as much as digits as its factorization.

12659619227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342151908.

The product of its digits is 816480, while the sum is 50.

The spelling of 12659619227 in words is "twelve billion, six hundred fifty-nine million, six hundred nineteen thousand, two hundred twenty-seven".