12173571268 has 12 divisors (see below), whose sum is σ = 21335409340. Its totient is φ = 6077740032.

The previous prime is 12173571253. The next prime is 12173571269. The reversal of 12173571268 is 86217537121.

It can be written as a sum of positive squares in 2 ways, for example, as 1205617284 + 10967953984 = 34722^2 + 104728^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12173571269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258373 + ... + 2263756.

Almost surely, 2^12173571268 is an apocalyptic number.

It is an amenable number.

12173571268 is a deficient number, since it is larger than the sum of its proper divisors (9161838072).

12173571268 is a wasteful number, since it uses less digits than its factorization.

12173571268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522806 (or 4522804 counting only the distinct ones).

The product of its digits is 141120, while the sum is 43.

The spelling of 12173571268 in words is "twelve billion, one hundred seventy-three million, five hundred seventy-one thousand, two hundred sixty-eight".