12334566779 has 4 divisors (see below), whose sum is σ = 12361207776. Its totient is φ = 12307925784.

The previous prime is 12334566709. The next prime is 12334566809. The reversal of 12334566779 is 97766543321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97766543321 = 131 ⋅746309491.

It is a cyclic number.

It is not a de Polignac number, because 12334566779 - 2¹⁶ = 12334501243 is a prime.

It is a super-2 number, since 2×12334566779² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 12334566779.

It is not an unprimeable number, because it can be changed into a prime (12334566709) 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, 13319804 + ... + 13320729.

It is an arithmetic number, because the mean of its divisors is an integer number (3090301944).

Almost surely, 2^12334566779 is an apocalyptic number.

12334566779 is a deficient number, since it is larger than the sum of its proper divisors (26640997).

12334566779 is an equidigital number, since it uses as much as digits as its factorization.

12334566779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26640996.

The product of its digits is 5715360, while the sum is 53.

The spelling of 12334566779 in words is "twelve billion, three hundred thirty-four million, five hundred sixty-six thousand, seven hundred seventy-nine".