12326994729 has 81 divisors (see below), whose sum is σ = 22073746071. Its totient is φ = 6608327040.

The previous prime is 12326994709. The next prime is 12326994733. The reversal of 12326994729 is 92749962321.

The square root of 12326994729 is 111027.

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

It can be written as a sum of positive squares in only one way, i.e., 9597141225 + 2729853504 = 97965^2 + 52248^2 .

It is not a de Polignac number, because 12326994729 - 2¹⁵ = 12326961961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12326994709) 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 80 ways as a sum of consecutive naturals, for example, 39636484 + ... + 39636794.

Almost surely, 2^12326994729 is an apocalyptic number.

12326994729 is the 111027-th square number.

12326994729 is the 55514-th centered octagonal number.

It is an amenable number.

12326994729 is a deficient number, since it is larger than the sum of its proper divisors (9746751342).

12326994729 is an equidigital number, since it uses as much as digits as its factorization.

12326994729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676 (or 338 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 12326994729 in words is "twelve billion, three hundred twenty-six million, nine hundred ninety-four thousand, seven hundred twenty-nine".