27685657276 has 12 divisors (see below), whose sum is σ = 49364049672. Its totient is φ = 13581643088.

The previous prime is 27685657249. The next prime is 27685657277. The reversal of 27685657276 is 67275658672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27685657277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65296150 + ... + 65296573.

It is an arithmetic number, because the mean of its divisors is an integer number (4113670806).

Almost surely, 2^27685657276 is an apocalyptic number.

It is an amenable number.

27685657276 is a deficient number, since it is larger than the sum of its proper divisors (21678392396).

27685657276 is a wasteful number, since it uses less digits than its factorization.

27685657276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130592780 (or 130592778 counting only the distinct ones).

The product of its digits is 59270400, while the sum is 61.

The spelling of 27685657276 in words is "twenty-seven billion, six hundred eighty-five million, six hundred fifty-seven thousand, two hundred seventy-six".