27018341138889 has 27 divisors (see below), whose sum is σ = 39316545737287. Its totient is φ = 17879337479904.

The previous prime is 27018341138849. The next prime is 27018341138891. The reversal of 27018341138889 is 98883114381072.

The square root of 27018341138889 is 5197917.

It is a perfect power (a square), and thus also a powerful number.

27018341138889 is a `hidden beast` number, since 2 + 7 + 0 + 183 + 411 + 38 + 8 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 15870702278025 + 11147638860864 = 3983805^2 + 3338808^2 .

It is not a de Polignac number, because 27018341138889 - 2¹⁷ = 27018341007817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27018341138849) 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 26 ways as a sum of consecutive naturals, for example, 2136337564 + ... + 2136350210.

Almost surely, 2^{27018341138889} is an apocalyptic number.

27018341138889 is the 5197917-th square number.

27018341138889 is the 2598959-th centered octagonal number.

It is an amenable number.

27018341138889 is a deficient number, since it is larger than the sum of its proper divisors (12298204598398).

27018341138889 is an frugal number, since it uses more digits than its factorization.

27018341138889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25574 (or 12787 counting only the distinct ones).

The product of its (nonzero) digits is 18579456, while the sum is 63.

The spelling of 27018341138889 in words is "twenty-seven trillion, eighteen billion, three hundred forty-one million, one hundred thirty-eight thousand, eight hundred eighty-nine".