27173168029 has 4 divisors (see below), whose sum is σ = 31055049184. Its totient is φ = 23291286876.

The previous prime is 27173168023. The next prime is 27173168053. The reversal of 27173168029 is 92086137172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27173168029 - 2³ = 27173168021 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 27173168029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27173168021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1940940567 + ... + 1940940580.

It is an arithmetic number, because the mean of its divisors is an integer number (7763762296).

Almost surely, 2^27173168029 is an apocalyptic number.

It is an amenable number.

27173168029 is a deficient number, since it is larger than the sum of its proper divisors (3881881155).

27173168029 is an equidigital number, since it uses as much as digits as its factorization.

27173168029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3881881154.

The product of its (nonzero) digits is 254016, while the sum is 46.

The spelling of 27173168029 in words is "twenty-seven billion, one hundred seventy-three million, one hundred sixty-eight thousand, twenty-nine".