12943127865 has 16 divisors (see below), whose sum is σ = 20797890048. Its totient is φ = 6873373056.

The previous prime is 12943127863. The next prime is 12943127887. The reversal of 12943127865 is 56872134921.

12943127865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12943127865 - 2¹ = 12943127863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12943127863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1848169 + ... + 1855158.

It is an arithmetic number, because the mean of its divisors is an integer number (1299868128).

Almost surely, 2^12943127865 is an apocalyptic number.

12943127865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12943127865 is a deficient number, since it is larger than the sum of its proper divisors (7854762183).

12943127865 is a wasteful number, since it uses less digits than its factorization.

12943127865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3703568.

The product of its digits is 725760, while the sum is 48.

The spelling of 12943127865 in words is "twelve billion, nine hundred forty-three million, one hundred twenty-seven thousand, eight hundred sixty-five".