12332768809 has 3 divisors (see below), whose sum is σ = 12332879863. Its totient is φ = 12332657756.

The previous prime is 12332768801. The next prime is 12332768827. The reversal of 12332768809 is 90886723321.

The square root of 12332768809 is 111053.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 90886723321 = 65839 ⋅1380439.

It can be written as a sum of positive squares in only one way, i.e., 9526736025 + 2806032784 = 97605^2 + 52972^2 .

It is not a de Polignac number, because 12332768809 - 2³ = 12332768801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12332768801) 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 2 ways as a sum of consecutive naturals, for example, 55527 + ... + 166579.

Almost surely, 2^12332768809 is an apocalyptic number.

12332768809 is the 111053-rd square number.

12332768809 is the 55527-th centered octagonal number.

It is an amenable number.

12332768809 is a deficient number, since it is larger than the sum of its proper divisors (111054).

12332768809 is an frugal number, since it uses more digits than its factorization.

12332768809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222106 (or 111053 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

Multiplying 12332768809 by its sum of digits (49), we get a square (604305671641 = 777371²).

The spelling of 12332768809 in words is "twelve billion, three hundred thirty-two million, seven hundred sixty-eight thousand, eight hundred nine".