27171173055 has 32 divisors (see below), whose sum is σ = 47814165504. Its totient is φ = 13091965056.

The previous prime is 27171173033. The next prime is 27171173059. The reversal of 27171173055 is 55037117172.

It is not a de Polignac number, because 27171173055 - 2⁸ = 27171172799 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27171173059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1473169 + ... + 1491498.

It is an arithmetic number, because the mean of its divisors is an integer number (1494192672).

Almost surely, 2^27171173055 is an apocalyptic number.

27171173055 is a deficient number, since it is larger than the sum of its proper divisors (20642992449).

27171173055 is a wasteful number, since it uses less digits than its factorization.

27171173055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2964735.

The product of its (nonzero) digits is 51450, while the sum is 39.

The spelling of 27171173055 in words is "twenty-seven billion, one hundred seventy-one million, one hundred seventy-three thousand, fifty-five".