27666743677 has 8 divisors (see below), whose sum is σ = 28879344000. Its totient is φ = 26454951600.

The previous prime is 27666743641. The next prime is 27666743701. The reversal of 27666743677 is 77634766672.

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 27666743677 - 2¹⁵ = 27666710909 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 (27666743627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131574 + ... + 269527.

It is an arithmetic number, because the mean of its divisors is an integer number (3609918000).

Almost surely, 2^27666743677 is an apocalyptic number.

It is an amenable number.

27666743677 is a deficient number, since it is larger than the sum of its proper divisors (1212600323).

27666743677 is a wasteful number, since it uses less digits than its factorization.

27666743677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404123.

The product of its digits is 74680704, while the sum is 61.

The spelling of 27666743677 in words is "twenty-seven billion, six hundred sixty-six million, seven hundred forty-three thousand, six hundred seventy-seven".