27108197065 has 8 divisors (see below), whose sum is σ = 32941607040. Its totient is φ = 21412043952.

The previous prime is 27108197057. The next prime is 27108197071. The reversal of 27108197065 is 56079180172.

It is a happy number.

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 27108197065 - 2³ = 27108197057 is a prime.

It is a super-2 number, since 2×27108197065² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34313779 + ... + 34314568.

It is an arithmetic number, because the mean of its divisors is an integer number (4117700880).

Almost surely, 2^27108197065 is an apocalyptic number.

It is an amenable number.

27108197065 is a deficient number, since it is larger than the sum of its proper divisors (5833409975).

27108197065 is an equidigital number, since it uses as much as digits as its factorization.

27108197065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68628431.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 27108197065 in words is "twenty-seven billion, one hundred eight million, one hundred ninety-seven thousand, sixty-five".