27720678092 has 24 divisors (see below), whose sum is σ = 50186002944. Its totient is φ = 13387289472.

The previous prime is 27720678053. The next prime is 27720678109. The reversal of 27720678092 is 29087602772.

It is a self number, because there is not a number n which added to its sum of digits gives 27720678092.

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, 663308 + ... + 703859.

It is an arithmetic number, because the mean of its divisors is an integer number (2091083456).

Almost surely, 2^27720678092 is an apocalyptic number.

It is an amenable number.

27720678092 is a deficient number, since it is larger than the sum of its proper divisors (22465324852).

27720678092 is a wasteful number, since it uses less digits than its factorization.

27720678092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367345 (or 1367343 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 50.

The spelling of 27720678092 in words is "twenty-seven billion, seven hundred twenty million, six hundred seventy-eight thousand, ninety-two".