12705839299 has 4 divisors (see below), whose sum is σ = 12721545720. Its totient is φ = 12690132880.

The previous prime is 12705839291. The next prime is 12705839303. The reversal of 12705839299 is 99293850721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12705839299 - 2³ = 12705839291 is a prime.

It is a super-2 number, since 2×12705839299² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12705839291) 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 3 ways as a sum of consecutive naturals, for example, 7851997 + ... + 7853614.

It is an arithmetic number, because the mean of its divisors is an integer number (3180386430).

Almost surely, 2^12705839299 is an apocalyptic number.

12705839299 is a deficient number, since it is larger than the sum of its proper divisors (15706421).

12705839299 is an equidigital number, since it uses as much as digits as its factorization.

12705839299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15706420.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The spelling of 12705839299 in words is "twelve billion, seven hundred five million, eight hundred thirty-nine thousand, two hundred ninety-nine".