12263228969 has 4 divisors (see below), whose sum is σ = 12267087300. Its totient is φ = 12259370640.

The previous prime is 12263228963. The next prime is 12263228981. The reversal of 12263228969 is 96982236221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6689113369 + 5574115600 = 81787^2 + 74660^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12263228969 is a prime.

It is a super-2 number, since 2×12263228969² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12263228963) 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, 1924394 + ... + 1930755.

It is an arithmetic number, because the mean of its divisors is an integer number (3066771825).

Almost surely, 2^12263228969 is an apocalyptic number.

It is an amenable number.

12263228969 is a deficient number, since it is larger than the sum of its proper divisors (3858331).

12263228969 is an equidigital number, since it uses as much as digits as its factorization.

12263228969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3858330.

The product of its digits is 1119744, while the sum is 50.

The spelling of 12263228969 in words is "twelve billion, two hundred sixty-three million, two hundred twenty-eight thousand, nine hundred sixty-nine".