12838472236 has 6 divisors (see below), whose sum is σ = 22467326420. Its totient is φ = 6419236116.

The previous prime is 12838472221. The next prime is 12838472239. The reversal of 12838472236 is 63227483821.

It is not an unprimeable number, because it can be changed into a prime (12838472239) by changing a digit.

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 as a sum of consecutive naturals, namely, 1604809026 + ... + 1604809033.

Almost surely, 2^12838472236 is an apocalyptic number.

It is an amenable number.

12838472236 is a deficient number, since it is larger than the sum of its proper divisors (9628854184).

12838472236 is a wasteful number, since it uses less digits than its factorization.

12838472236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209618063 (or 3209618061 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The spelling of 12838472236 in words is "twelve billion, eight hundred thirty-eight million, four hundred seventy-two thousand, two hundred thirty-six".