12722713305 has 8 divisors (see below), whose sum is σ = 20356341312. Its totient is φ = 6785447088.

The previous prime is 12722713303. The next prime is 12722713313. The reversal of 12722713305 is 50331722721.

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

It is not a de Polignac number, because 12722713305 - 2¹ = 12722713303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12722713301) 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 7 ways as a sum of consecutive naturals, for example, 424090429 + ... + 424090458.

It is an arithmetic number, because the mean of its divisors is an integer number (2544542664).

Almost surely, 2^12722713305 is an apocalyptic number.

12722713305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12722713305 is a deficient number, since it is larger than the sum of its proper divisors (7633628007).

12722713305 is an equidigital number, since it uses as much as digits as its factorization.

12722713305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848180895.

The product of its (nonzero) digits is 17640, while the sum is 33.

The spelling of 12722713305 in words is "twelve billion, seven hundred twenty-two million, seven hundred thirteen thousand, three hundred five".