12392810329 has 3 divisors (see below), whose sum is σ = 12392921653. Its totient is φ = 12392699006.

The previous prime is 12392810273. The next prime is 12392810369. The reversal of 12392810329 is 92301829321.

The square root of 12392810329 is 111323.

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.

It is not a de Polignac number, because 12392810329 - 2¹⁵ = 12392777561 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12392810291 and 12392810300.

It is not an unprimeable number, because it can be changed into a prime (12392810369) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 55662 + ... + 166984.

Almost surely, 2^12392810329 is an apocalyptic number.

12392810329 is the 111323-rd square number.

12392810329 is the 55662-nd centered octagonal number.

It is an amenable number.

12392810329 is a deficient number, since it is larger than the sum of its proper divisors (111324).

12392810329 is an frugal number, since it uses more digits than its factorization.

12392810329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222646 (or 111323 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

Multiplying 12392810329 by its product of nonzero digits (46656), we get a square (578198958709824 = 24045768²).

The spelling of 12392810329 in words is "twelve billion, three hundred ninety-two million, eight hundred ten thousand, three hundred twenty-nine".