27117884564 has 6 divisors (see below), whose sum is σ = 47456297994. Its totient is φ = 13558942280.

The previous prime is 27117884561. The next prime is 27117884593. The reversal of 27117884564 is 46548871172.

It can be written as a sum of positive squares in only one way, i.e., 26549443600 + 568440964 = 162940^2 + 23842^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27117884561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3389735567 + ... + 3389735574.

It is an arithmetic number, because the mean of its divisors is an integer number (7909382999).

Almost surely, 2^27117884564 is an apocalyptic number.

It is an amenable number.

27117884564 is a deficient number, since it is larger than the sum of its proper divisors (20338413430).

27117884564 is a wasteful number, since it uses less digits than its factorization.

27117884564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6779471145 (or 6779471143 counting only the distinct ones).

The product of its digits is 3010560, while the sum is 53.

The spelling of 27117884564 in words is "twenty-seven billion, one hundred seventeen million, eight hundred eighty-four thousand, five hundred sixty-four".