12786228742127 has 4 divisors (see below), whose sum is σ = 12803672438280. Its totient is φ = 12768785045976.

The previous prime is 12786228742033. The next prime is 12786228742151. The reversal of 12786228742127 is 72124782268721.

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 12786228742127 - 2²² = 12786224547823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12786228742927) 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, 8721846977 + ... + 8721848442.

It is an arithmetic number, because the mean of its divisors is an integer number (3200918109570).

Almost surely, 2^{12786228742127} is an apocalyptic number.

12786228742127 is a deficient number, since it is larger than the sum of its proper divisors (17443696153).

12786228742127 is an equidigital number, since it uses as much as digits as its factorization.

12786228742127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17443696152.

The product of its digits is 16859136, while the sum is 59.

The spelling of 12786228742127 in words is "twelve trillion, seven hundred eighty-six billion, two hundred twenty-eight million, seven hundred forty-two thousand, one hundred twenty-seven".