12727127899 has 4 divisors (see below), whose sum is σ = 12740568264. Its totient is φ = 12713687536.

The previous prime is 12727127863. The next prime is 12727127921. The reversal of 12727127899 is 99872172721.

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 12727127899 - 2¹⁷ = 12726996827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12727127839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6718762 + ... + 6720655.

It is an arithmetic number, because the mean of its divisors is an integer number (3185142066).

Almost surely, 2^12727127899 is an apocalyptic number.

12727127899 is a deficient number, since it is larger than the sum of its proper divisors (13440365).

12727127899 is an equidigital number, since it uses as much as digits as its factorization.

12727127899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13440364.

The product of its digits is 1778112, while the sum is 55.

The spelling of 12727127899 in words is "twelve billion, seven hundred twenty-seven million, one hundred twenty-seven thousand, eight hundred ninety-nine".