27788223204 has 231 divisors, whose sum is σ = 85100849827. Its totient is φ = 7939492344.

The previous prime is 27788223161. The next prime is 27788223233. The reversal of 27788223204 is 40232288772.

The square root of 27788223204 is 166698.

It is a perfect power (a square), and thus also a powerful number.

It is a self number, because there is not a number n which added to its sum of digits gives 27788223204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 76 ways as a sum of consecutive naturals, for example, 3969746169 + ... + 3969746175.

Almost surely, 2^27788223204 is an apocalyptic number.

27788223204 is the 166698-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27788223204

27788223204 is an abundant number, since it is smaller than the sum of its proper divisors (57312626623).

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

27788223204 is an frugal number, since it uses more digits than its factorization.

27788223204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 12 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 45.

The spelling of 27788223204 in words is "twenty-seven billion, seven hundred eighty-eight million, two hundred twenty-three thousand, two hundred four".