27966823545 has 8 divisors (see below), whose sum is σ = 44746917696. Its totient is φ = 14915639216.

The previous prime is 27966823529. The next prime is 27966823571. The reversal of 27966823545 is 54532866972.

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 27966823545 - 2⁴ = 27966823529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 932227437 + ... + 932227466.

It is an arithmetic number, because the mean of its divisors is an integer number (5593364712).

Almost surely, 2^27966823545 is an apocalyptic number.

It is an amenable number.

27966823545 is a deficient number, since it is larger than the sum of its proper divisors (16780094151).

27966823545 is a wasteful number, since it uses less digits than its factorization.

27966823545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864454911.

The product of its digits is 21772800, while the sum is 57.

The spelling of 27966823545 in words is "twenty-seven billion, nine hundred sixty-six million, eight hundred twenty-three thousand, five hundred forty-five".