12809277329 has 8 divisors (see below), whose sum is σ = 13654128000. Its totient is φ = 11981494512.

The previous prime is 12809277319. The next prime is 12809277337. The reversal of 12809277329 is 92377290821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12809277329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12809277319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4265414 + ... + 4268415.

It is an arithmetic number, because the mean of its divisors is an integer number (1706766000).

Almost surely, 2^12809277329 is an apocalyptic number.

12809277329 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12809277329 is a deficient number, since it is larger than the sum of its proper divisors (844850671).

12809277329 is an equidigital number, since it uses as much as digits as its factorization.

12809277329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8533927.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 12809277329 in words is "twelve billion, eight hundred nine million, two hundred seventy-seven thousand, three hundred twenty-nine".