27453668812817 has 16 divisors (see below), whose sum is σ = 29716624885248. Its totient is φ = 25212445516800.

The previous prime is 27453668812799. The next prime is 27453668812819. The reversal of 27453668812817 is 71821886635472.

It is a cyclic number.

It is not a de Polignac number, because 27453668812817 - 2⁶ = 27453668812753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27453668812819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683758 + ... + 7598840.

It is an arithmetic number, because the mean of its divisors is an integer number (1857289055328).

Almost surely, 2^{27453668812817} is an apocalyptic number.

It is an amenable number.

27453668812817 is a deficient number, since it is larger than the sum of its proper divisors (2262956072431).

27453668812817 is a wasteful number, since it uses less digits than its factorization.

27453668812817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5916920.

The product of its digits is 216760320, while the sum is 68.

The spelling of 27453668812817 in words is "twenty-seven trillion, four hundred fifty-three billion, six hundred sixty-eight million, eight hundred twelve thousand, eight hundred seventeen".