12824397227 has 4 divisors (see below), whose sum is σ = 13066367040. Its totient is φ = 12582427416.

The previous prime is 12824397203. The next prime is 12824397259. The reversal of 12824397227 is 72279342821.

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 12824397227 - 2¹⁶ = 12824331691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12824397127) 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, 120984827 + ... + 120984932.

It is an arithmetic number, because the mean of its divisors is an integer number (3266591760).

Almost surely, 2^12824397227 is an apocalyptic number.

12824397227 is a deficient number, since it is larger than the sum of its proper divisors (241969813).

12824397227 is an equidigital number, since it uses as much as digits as its factorization.

12824397227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241969812.

The product of its digits is 677376, while the sum is 47.

The spelling of 12824397227 in words is "twelve billion, eight hundred twenty-four million, three hundred ninety-seven thousand, two hundred twenty-seven".