27147011171 has 4 divisors (see below), whose sum is σ = 31025155632. Its totient is φ = 23268866712.

The previous prime is 27147011149. The next prime is 27147011191. The reversal of 27147011171 is 17111074172.

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

It is not a de Polignac number, because 27147011171 - 2³⁰ = 26073269347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27147011141) 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, 1939072220 + ... + 1939072233.

It is an arithmetic number, because the mean of its divisors is an integer number (7756288908).

Almost surely, 2^27147011171 is an apocalyptic number.

27147011171 is a deficient number, since it is larger than the sum of its proper divisors (3878144461).

27147011171 is an equidigital number, since it uses as much as digits as its factorization.

27147011171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3878144460.

The product of its (nonzero) digits is 2744, while the sum is 32.

The spelling of 27147011171 in words is "twenty-seven billion, one hundred forty-seven million, eleven thousand, one hundred seventy-one".