12887217673 has 8 divisors (see below), whose sum is σ = 14148331200. Its totient is φ = 11641028880.

The previous prime is 12887217649. The next prime is 12887217677. The reversal of 12887217673 is 37671278821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12887217673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12887217673.

It is not an unprimeable number, because it can be changed into a prime (12887217677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3729373 + ... + 3732826.

It is an arithmetic number, because the mean of its divisors is an integer number (1768541400).

Almost surely, 2^12887217673 is an apocalyptic number.

It is an amenable number.

12887217673 is a deficient number, since it is larger than the sum of its proper divisors (1261113527).

12887217673 is a wasteful number, since it uses less digits than its factorization.

12887217673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7462367.

The product of its digits is 1580544, while the sum is 52.

The spelling of 12887217673 in words is "twelve billion, eight hundred eighty-seven million, two hundred seventeen thousand, six hundred seventy-three".