27911983105 has 8 divisors (see below), whose sum is σ = 33495276672. Its totient is φ = 22328988528.

The previous prime is 27911983097. The next prime is 27911983159. The reversal of 27911983105 is 50138911972.

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 27911983105 - 2³ = 27911983097 is a prime.

It is a Duffinian 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, 324792 + ... + 401638.

It is an arithmetic number, because the mean of its divisors is an integer number (4186909584).

Almost surely, 2^27911983105 is an apocalyptic number.

It is an amenable number.

27911983105 is a deficient number, since it is larger than the sum of its proper divisors (5583293567).

27911983105 is an equidigital number, since it uses as much as digits as its factorization.

27911983105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149495.

The product of its (nonzero) digits is 136080, while the sum is 46.

The spelling of 27911983105 in words is "twenty-seven billion, nine hundred eleven million, nine hundred eighty-three thousand, one hundred five".