27827855447 has 8 divisors (see below), whose sum is σ = 32542874496. Its totient is φ = 23297739192.

The previous prime is 27827855423. The next prime is 27827855477. The reversal of 27827855447 is 74455872872.

It is a happy number.

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

It is not a de Polignac number, because 27827855447 - 2³⁰ = 26754113623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27827855477) 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 7 ways as a sum of consecutive naturals, for example, 46225373 + ... + 46225974.

It is an arithmetic number, because the mean of its divisors is an integer number (4067859312).

Almost surely, 2^27827855447 is an apocalyptic number.

27827855447 is a deficient number, since it is larger than the sum of its proper divisors (4715019049).

27827855447 is an equidigital number, since it uses as much as digits as its factorization.

27827855447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92451397.

The product of its digits is 35123200, while the sum is 59.

The spelling of 27827855447 in words is "twenty-seven billion, eight hundred twenty-seven million, eight hundred fifty-five thousand, four hundred forty-seven".