27804009684 has 96 divisors (see below), whose sum is σ = 71640898560. Its totient is φ = 8392153440.

The previous prime is 27804009661. The next prime is 27804009703. The reversal of 27804009684 is 48690040872.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4197327 + ... + 4203945.

It is an arithmetic number, because the mean of its divisors is an integer number (746259360).

Almost surely, 2^27804009684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27804009684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35820449280).

27804009684 is an abundant number, since it is smaller than the sum of its proper divisors (43836888876).

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

27804009684 is a wasteful number, since it uses less digits than its factorization.

27804009684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6922 (or 6898 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 48.

The spelling of 27804009684 in words is "twenty-seven billion, eight hundred four million, nine thousand, six hundred eighty-four".