12824788281 has 4 divisors (see below), whose sum is σ = 17099717712. Its totient is φ = 8549858852.

The previous prime is 12824788231. The next prime is 12824788307. The reversal of 12824788281 is 18288742821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12824788281 - 2⁷ = 12824788153 is a prime.

It is a super-2 number, since 2×12824788281² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12824788211) 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, 2137464711 + ... + 2137464716.

It is an arithmetic number, because the mean of its divisors is an integer number (4274929428).

Almost surely, 2^12824788281 is an apocalyptic number.

It is an amenable number.

12824788281 is a deficient number, since it is larger than the sum of its proper divisors (4274929431).

12824788281 is an equidigital number, since it uses as much as digits as its factorization.

12824788281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274929430.

The product of its digits is 917504, while the sum is 51.

The spelling of 12824788281 in words is "twelve billion, eight hundred twenty-four million, seven hundred eighty-eight thousand, two hundred eighty-one".