12769841867 has 4 divisors (see below), whose sum is σ = 12790472280. Its totient is φ = 12749211456.

The previous prime is 12769841831. The next prime is 12769841897. The reversal of 12769841867 is 76814896721.

12769841867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12769841867 - 2¹⁴ = 12769825483 is a prime.

It is a super-2 number, since 2×12769841867² (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 (12769841807) 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 3 ways as a sum of consecutive naturals, for example, 10314278 + ... + 10315515.

It is an arithmetic number, because the mean of its divisors is an integer number (3197618070).

Almost surely, 2^12769841867 is an apocalyptic number.

12769841867 is a deficient number, since it is larger than the sum of its proper divisors (20630413).

12769841867 is an equidigital number, since it uses as much as digits as its factorization.

12769841867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20630412.

The product of its digits is 8128512, while the sum is 59.

The spelling of 12769841867 in words is "twelve billion, seven hundred sixty-nine million, eight hundred forty-one thousand, eight hundred sixty-seven".