27827127205 has 8 divisors (see below), whose sum is σ = 33698907000. Its totient is φ = 22057465536.

The previous prime is 27827127191. The next prime is 27827127227. The reversal of 27827127205 is 50272172872.

It can be written as a sum of positive squares in 4 ways, for example, as 2118852961 + 25708274244 = 46031^2 + 160338^2 .

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 27827127205 - 2⁹ = 27827126693 is a prime.

It is a super-2 number, since 2×27827127205² (a number of 22 digits) contains 22 as substring.

It is a congruent 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, 25528930 + ... + 25530019.

It is an arithmetic number, because the mean of its divisors is an integer number (4212363375).

Almost surely, 2^27827127205 is an apocalyptic number.

It is an amenable number.

27827127205 is a deficient number, since it is larger than the sum of its proper divisors (5871779795).

27827127205 is a wasteful number, since it uses less digits than its factorization.

27827127205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51059063.

The product of its (nonzero) digits is 219520, while the sum is 43.

The spelling of 27827127205 in words is "twenty-seven billion, eight hundred twenty-seven million, one hundred twenty-seven thousand, two hundred five".