27647000065 has 8 divisors (see below), whose sum is σ = 33348299688. Its totient is φ = 22003000320.

The previous prime is 27647000047. The next prime is 27647000089. The reversal of 27647000065 is 56000074672.

It can be written as a sum of positive squares in 4 ways, for example, as 627201936 + 27019798129 = 25044^2 + 164377^2 .

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

It is not a de Polignac number, because 27647000065 - 2⁵ = 27647000033 is a prime.

It is a super-2 number, since 2×27647000065² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27646999988 and 27647000033.

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, 14323906 + ... + 14325835.

It is an arithmetic number, because the mean of its divisors is an integer number (4168537461).

Almost surely, 2^27647000065 is an apocalyptic number.

It is an amenable number.

27647000065 is a deficient number, since it is larger than the sum of its proper divisors (5701299623).

27647000065 is a wasteful number, since it uses less digits than its factorization.

27647000065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28649939.

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 27647000065 in words is "twenty-seven billion, six hundred forty-seven million, sixty-five", and thus it is an aban number.