27528804065 has 16 divisors (see below), whose sum is σ = 38270967168. Its totient is φ = 18618304896.

The previous prime is 27528804049. The next prime is 27528804067. The reversal of 27528804065 is 56040882572.

It is a cyclic number.

It is not a de Polignac number, because 27528804065 - 2⁴ = 27528804049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27528804067) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 5384687 + ... + 5389796.

It is an arithmetic number, because the mean of its divisors is an integer number (2391935448).

Almost surely, 2^27528804065 is an apocalyptic number.

It is an amenable number.

27528804065 is a deficient number, since it is larger than the sum of its proper divisors (10742163103).

27528804065 is a wasteful number, since it uses less digits than its factorization.

27528804065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10774568.

The product of its (nonzero) digits is 1075200, while the sum is 47.

The spelling of 27528804065 in words is "twenty-seven billion, five hundred twenty-eight million, eight hundred four thousand, sixty-five".