27911448905 has 8 divisors (see below), whose sum is σ = 34206371712. Its totient is φ = 21854070448.

The previous prime is 27911448899. The next prime is 27911448919. The reversal of 27911448905 is 50984411972.

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 27911448905 - 2¹⁰ = 27911447881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59385827 + ... + 59386296.

It is an arithmetic number, because the mean of its divisors is an integer number (4275796464).

Almost surely, 2^27911448905 is an apocalyptic number.

It is an amenable number.

27911448905 is a deficient number, since it is larger than the sum of its proper divisors (6294922807).

27911448905 is a wasteful number, since it uses less digits than its factorization.

27911448905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118772175.

The product of its (nonzero) digits is 725760, while the sum is 50.

The spelling of 27911448905 in words is "twenty-seven billion, nine hundred eleven million, four hundred forty-eight thousand, nine hundred five".