12776286911 has 4 divisors (see below), whose sum is σ = 12776567832. Its totient is φ = 12776005992.

The previous prime is 12776286889. The next prime is 12776286923. The reversal of 12776286911 is 11968267721.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11968267721 = 71 ⋅168567151.

It is a cyclic number.

It is not a de Polignac number, because 12776286911 - 2⁶ = 12776286847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12776286911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12776286931) 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, 54845 + ... + 168998.

It is an arithmetic number, because the mean of its divisors is an integer number (3194141958).

Almost surely, 2^12776286911 is an apocalyptic number.

12776286911 is a deficient number, since it is larger than the sum of its proper divisors (280921).

12776286911 is an equidigital number, since it uses as much as digits as its factorization.

12776286911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280920.

The product of its digits is 508032, while the sum is 50.

The spelling of 12776286911 in words is "twelve billion, seven hundred seventy-six million, two hundred eighty-six thousand, nine hundred eleven".