27255805905 has 8 divisors (see below), whose sum is σ = 43609289472. Its totient is φ = 14536429808.

The previous prime is 27255805777. The next prime is 27255805921. The reversal of 27255805905 is 50950855272.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27255805905 - 2⁷ = 27255805777 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 908526849 + ... + 908526878.

It is an arithmetic number, because the mean of its divisors is an integer number (5451161184).

Almost surely, 2^27255805905 is an apocalyptic number.

It is an amenable number.

27255805905 is a deficient number, since it is larger than the sum of its proper divisors (16353483567).

27255805905 is a wasteful number, since it uses less digits than its factorization.

27255805905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1817053735.

The product of its (nonzero) digits is 1260000, while the sum is 48.

The spelling of 27255805905 in words is "twenty-seven billion, two hundred fifty-five million, eight hundred five thousand, nine hundred five".