27773312808 has 16 divisors (see below), whose sum is σ = 69433282080. Its totient is φ = 9257770928.

The previous prime is 27773312783. The next prime is 27773312813. The reversal of 27773312808 is 80821337772.

It is a happy 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, 578610660 + ... + 578610707.

It is an arithmetic number, because the mean of its divisors is an integer number (4339580130).

Almost surely, 2^27773312808 is an apocalyptic number.

It is an amenable number.

27773312808 is an abundant number, since it is smaller than the sum of its proper divisors (41659969272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27773312808 is a wasteful number, since it uses less digits than its factorization.

27773312808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157221376 (or 1157221372 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 27773312808 in words is "twenty-seven billion, seven hundred seventy-three million, three hundred twelve thousand, eight hundred eight".