27318645663823 has 8 divisors (see below), whose sum is σ = 27355706233856. Its totient is φ = 27281586915000.

The previous prime is 27318645663821. The next prime is 27318645663833. The reversal of 27318645663823 is 32836654681372.

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 27318645663823 - 2¹ = 27318645663821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27318645663821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31041190 + ... + 31909132.

It is an arithmetic number, because the mean of its divisors is an integer number (3419463279232).

Almost surely, 2^{27318645663823} is an apocalyptic number.

27318645663823 is a deficient number, since it is larger than the sum of its proper divisors (37060570033).

27318645663823 is an equidigital number, since it uses as much as digits as its factorization.

27318645663823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910605.

The product of its digits is 209018880, while the sum is 64.

The spelling of 27318645663823 in words is "twenty-seven trillion, three hundred eighteen billion, six hundred forty-five million, six hundred sixty-three thousand, eight hundred twenty-three".