27775856684 has 6 divisors (see below), whose sum is σ = 48607749204. Its totient is φ = 13887928340.

The previous prime is 27775856671. The next prime is 27775856723. The reversal of 27775856684 is 48665857772.

It is a self number, because there is not a number n which added to its sum of digits gives 27775856684.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3471982082 + ... + 3471982089.

It is an arithmetic number, because the mean of its divisors is an integer number (8101291534).

Almost surely, 2^27775856684 is an apocalyptic number.

It is an amenable number.

27775856684 is a deficient number, since it is larger than the sum of its proper divisors (20831892520).

27775856684 is a wasteful number, since it uses less digits than its factorization.

27775856684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943964175 (or 6943964173 counting only the distinct ones).

The product of its digits is 158054400, while the sum is 65.

The spelling of 27775856684 in words is "twenty-seven billion, seven hundred seventy-five million, eight hundred fifty-six thousand, six hundred eighty-four".