27838665327 has 16 divisors (see below), whose sum is σ = 40497275520. Its totient is φ = 16869972000.

The previous prime is 27838665311. The next prime is 27838665331. The reversal of 27838665327 is 72356683872.

It is not a de Polignac number, because 27838665327 - 2⁴ = 27838665311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27838665527) 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 15 ways as a sum of consecutive naturals, for example, 273577 + ... + 361277.

It is an arithmetic number, because the mean of its divisors is an integer number (2531079720).

Almost surely, 2^27838665327 is an apocalyptic number.

27838665327 is a deficient number, since it is larger than the sum of its proper divisors (12658610193).

27838665327 is a wasteful number, since it uses less digits than its factorization.

27838665327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97334.

The product of its digits is 20321280, while the sum is 57.

The spelling of 27838665327 in words is "twenty-seven billion, eight hundred thirty-eight million, six hundred sixty-five thousand, three hundred twenty-seven".