27008189936991 has 24 divisors (see below), whose sum is σ = 40372074678000. Its totient is φ = 17378116503552.

The previous prime is 27008189936969. The next prime is 27008189936993. The reversal of 27008189936991 is 19963998180072.

27008189936991 is a `hidden beast` number, since 27 + 0 + 0 + 81 + 89 + 9 + 369 + 91 = 666.

It is not a de Polignac number, because 27008189936991 - 2¹³ = 27008189928799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27008189936993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18539461 + ... + 19943118.

It is an arithmetic number, because the mean of its divisors is an integer number (1682169778250).

Almost surely, 2^{27008189936991} is an apocalyptic number.

27008189936991 is a deficient number, since it is larger than the sum of its proper divisors (13363884741009).

27008189936991 is a wasteful number, since it uses less digits than its factorization.

27008189936991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38485303 (or 38485300 counting only the distinct ones).

The product of its (nonzero) digits is 105815808, while the sum is 72.

The spelling of 27008189936991 in words is "twenty-seven trillion, eight billion, one hundred eighty-nine million, nine hundred thirty-six thousand, nine hundred ninety-one".