27066276517 has 4 divisors (see below), whose sum is σ = 30932887456. Its totient is φ = 23199665580.

The previous prime is 27066276493. The next prime is 27066276529. The reversal of 27066276517 is 71567266072.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-27066276517 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 (27066276617) 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 3 ways as a sum of consecutive naturals, for example, 1933305459 + ... + 1933305472.

It is an arithmetic number, because the mean of its divisors is an integer number (7733221864).

Almost surely, 2^27066276517 is an apocalyptic number.

It is an amenable number.

27066276517 is a deficient number, since it is larger than the sum of its proper divisors (3866610939).

27066276517 is an equidigital number, since it uses as much as digits as its factorization.

27066276517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3866610938.

The product of its (nonzero) digits is 1481760, while the sum is 49.

The spelling of 27066276517 in words is "twenty-seven billion, sixty-six million, two hundred seventy-six thousand, five hundred seventeen".