12768646173 has 8 divisors (see below), whose sum is σ = 17027130048. Its totient is φ = 8511296544.

The previous prime is 12768646157. The next prime is 12768646183. The reversal of 12768646173 is 37164686721.

It is a happy number.

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

It is not a de Polignac number, because 12768646173 - 2⁴ = 12768646157 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12768646123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256936 + ... + 302577.

It is an arithmetic number, because the mean of its divisors is an integer number (2128391256).

Almost surely, 2^12768646173 is an apocalyptic number.

It is an amenable number.

12768646173 is a deficient number, since it is larger than the sum of its proper divisors (4258483875).

12768646173 is an equidigital number, since it uses as much as digits as its factorization.

12768646173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567123.

The product of its digits is 2032128, while the sum is 51.

The spelling of 12768646173 in words is "twelve billion, seven hundred sixty-eight million, six hundred forty-six thousand, one hundred seventy-three".