12679222826 has 8 divisors (see below), whose sum is σ = 19532856900. Its totient is φ = 6168270528.

The previous prime is 12679222819. The next prime is 12679222837. The reversal of 12679222826 is 62822297621.

It can be written as a sum of positive squares in 2 ways, for example, as 11946708601 + 732514225 = 109301^2 + 27065^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85670351 + ... + 85670498.

Almost surely, 2^12679222826 is an apocalyptic number.

12679222826 is a deficient number, since it is larger than the sum of its proper divisors (6853634074).

12679222826 is a wasteful number, since it uses less digits than its factorization.

12679222826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171340888.

The product of its digits is 580608, while the sum is 47.

The spelling of 12679222826 in words is "twelve billion, six hundred seventy-nine million, two hundred twenty-two thousand, eight hundred twenty-six".