12668872338 has 16 divisors (see below), whose sum is σ = 28153049760. Its totient is φ = 4222957428.

The previous prime is 12668872301. The next prime is 12668872373. The reversal of 12668872338 is 83327886621.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 234608747 = 12668872338 / (1 + 2 + 6 + 6 + 8 + 8 + 7 + 2 + 3 + 3 + 8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117304320 + ... + 117304427.

It is an arithmetic number, because the mean of its divisors is an integer number (1759565610).

Almost surely, 2^12668872338 is an apocalyptic number.

12668872338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12668872338 is an abundant number, since it is smaller than the sum of its proper divisors (15484177422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12668872338 is a wasteful number, since it uses less digits than its factorization.

12668872338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234608758 (or 234608752 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 54.

The spelling of 12668872338 in words is "twelve billion, six hundred sixty-eight million, eight hundred seventy-two thousand, three hundred thirty-eight".