27773648564 has 12 divisors (see below), whose sum is σ = 48661821600. Its totient is φ = 13870270968.

The previous prime is 27773648543. The next prime is 27773648599. The reversal of 27773648564 is 46584637772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4134554 + ... + 4141265.

It is an arithmetic number, because the mean of its divisors is an integer number (4055151800).

Almost surely, 2^27773648564 is an apocalyptic number.

It is an amenable number.

27773648564 is a deficient number, since it is larger than the sum of its proper divisors (20888173036).

27773648564 is a wasteful number, since it uses less digits than its factorization.

27773648564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8276662 (or 8276660 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 59.

The spelling of 27773648564 in words is "twenty-seven billion, seven hundred seventy-three million, six hundred forty-eight thousand, five hundred sixty-four".