27172705271 has 4 divisors (see below), whose sum is σ = 27175041600. Its totient is φ = 27170368944.

The previous prime is 27172705207. The next prime is 27172705283. The reversal of 27172705271 is 17250727172.

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

It is a cyclic number.

It is not a de Polignac number, because 27172705271 - 2⁶ = 27172705207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27172705171) 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, 1150631 + ... + 1174008.

It is an arithmetic number, because the mean of its divisors is an integer number (6793760400).

Almost surely, 2^27172705271 is an apocalyptic number.

27172705271 is a deficient number, since it is larger than the sum of its proper divisors (2336329).

27172705271 is a wasteful number, since it uses less digits than its factorization.

27172705271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2336328.

The product of its (nonzero) digits is 96040, while the sum is 41.

The spelling of 27172705271 in words is "twenty-seven billion, one hundred seventy-two million, seven hundred five thousand, two hundred seventy-one".