12271287626 has 16 divisors (see below), whose sum is σ = 20283847584. Its totient is φ = 5531957424.

The previous prime is 12271287619. The next prime is 12271287631. The reversal of 12271287626 is 62678217221.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5486936 + ... + 5489171.

It is an arithmetic number, because the mean of its divisors is an integer number (1267740474).

Almost surely, 2^12271287626 is an apocalyptic number.

12271287626 is a deficient number, since it is larger than the sum of its proper divisors (8012559958).

12271287626 is a wasteful number, since it uses less digits than its factorization.

12271287626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10976165.

The product of its digits is 225792, while the sum is 44.

The spelling of 12271287626 in words is "twelve billion, two hundred seventy-one million, two hundred eighty-seven thousand, six hundred twenty-six".