27685367005 has 8 divisors (see below), whose sum is σ = 34294132224. Its totient is φ = 21433832400.

The previous prime is 27685366987. The next prime is 27685367009. The reversal of 27685367005 is 50076358672.

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

It is not a de Polignac number, because 27685367005 - 2¹¹ = 27685364957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27685367005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27685367009) 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, 89307481 + ... + 89307790.

It is an arithmetic number, because the mean of its divisors is an integer number (4286766528).

Almost surely, 2^27685367005 is an apocalyptic number.

It is an amenable number.

27685367005 is a deficient number, since it is larger than the sum of its proper divisors (6608765219).

27685367005 is a wasteful number, since it uses less digits than its factorization.

27685367005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178615307.

The product of its (nonzero) digits is 2116800, while the sum is 49.

The spelling of 27685367005 in words is "twenty-seven billion, six hundred eighty-five million, three hundred sixty-seven thousand, five".