27766612685 has 48 divisors (see below), whose sum is σ = 39628782144. Its totient is φ = 18617372928.

The previous prime is 27766612619. The next prime is 27766612691. The reversal of 27766612685 is 58621666772.

It is not a de Polignac number, because 27766612685 - 2¹⁰ = 27766611661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27766612685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2242682 + ... + 2255028.

It is an arithmetic number, because the mean of its divisors is an integer number (825599628).

Almost surely, 2^27766612685 is an apocalyptic number.

It is an amenable number.

27766612685 is a deficient number, since it is larger than the sum of its proper divisors (11862169459).

27766612685 is a wasteful number, since it uses less digits than its factorization.

27766612685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12570 (or 12563 counting only the distinct ones).

The product of its digits is 10160640, while the sum is 56.

The spelling of 27766612685 in words is "twenty-seven billion, seven hundred sixty-six million, six hundred twelve thousand, six hundred eighty-five".