27168085881847 has 4 divisors (see below), whose sum is σ = 27168751008400. Its totient is φ = 27167420755296.

The previous prime is 27168085881829. The next prime is 27168085881869. The reversal of 27168085881847 is 74818858086172.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27168085881847 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 27168085881847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27168085881887) 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, 332502003 + ... + 332583700.

It is an arithmetic number, because the mean of its divisors is an integer number (6792187752100).

Almost surely, 2^{27168085881847} is an apocalyptic number.

27168085881847 is a deficient number, since it is larger than the sum of its proper divisors (665126553).

27168085881847 is an equidigital number, since it uses as much as digits as its factorization.

27168085881847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665126552.

The product of its (nonzero) digits is 385351680, while the sum is 73.

The spelling of 27168085881847 in words is "twenty-seven trillion, one hundred sixty-eight billion, eighty-five million, eight hundred eighty-one thousand, eight hundred forty-seven".