12775824269 has 4 divisors (see below), whose sum is σ = 13758579996. Its totient is φ = 11793068544.

The previous prime is 12775824251. The next prime is 12775824307. The reversal of 12775824269 is 96242857721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96242857721 = 67 ⋅1436460563.

It can be written as a sum of positive squares in 2 ways, for example, as 1032851044 + 11742973225 = 32138^2 + 108365^2 .

It is a cyclic number.

It is not a de Polignac number, because 12775824269 - 2⁸ = 12775824013 is a prime.

It is a super-2 number, since 2×12775824269² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12775824269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12775824769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491377844 + ... + 491377869.

It is an arithmetic number, because the mean of its divisors is an integer number (3439644999).

Almost surely, 2^12775824269 is an apocalyptic number.

It is an amenable number.

12775824269 is a deficient number, since it is larger than the sum of its proper divisors (982755727).

12775824269 is an equidigital number, since it uses as much as digits as its factorization.

12775824269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982755726.

The product of its digits is 3386880, while the sum is 53.

The spelling of 12775824269 in words is "twelve billion, seven hundred seventy-five million, eight hundred twenty-four thousand, two hundred sixty-nine".