27668511885543 has 8 divisors (see below), whose sum is σ = 39061428544368. Its totient is φ = 17360634908544.

The previous prime is 27668511885529. The next prime is 27668511885589. The reversal of 27668511885543 is 34558811586672.

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

It is not a de Polignac number, because 27668511885543 - 2⁶ = 27668511885479 is a prime.

It is a Smith number, since the sum of its digits (69) 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 (27668511884543) 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, 271259920396 + ... + 271259920497.

It is an arithmetic number, because the mean of its divisors is an integer number (4882678568046).

Almost surely, 2^{27668511885543} is an apocalyptic number.

27668511885543 is a deficient number, since it is larger than the sum of its proper divisors (11392916658825).

27668511885543 is a wasteful number, since it uses less digits than its factorization.

27668511885543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542519840913.

The product of its digits is 387072000, while the sum is 69.

The spelling of 27668511885543 in words is "twenty-seven trillion, six hundred sixty-eight billion, five hundred eleven million, eight hundred eighty-five thousand, five hundred forty-three".