27804974388 has 24 divisors (see below), whose sum is σ = 64884536640. Its totient is φ = 9267430080.

The previous prime is 27804974381. The next prime is 27804974389. The reversal of 27804974388 is 88347940872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27804974381) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24273 + ... + 237063.

It is an arithmetic number, because the mean of its divisors is an integer number (2703522360).

Almost surely, 2^27804974388 is an apocalyptic number.

It is an amenable number.

27804974388 is an abundant number, since it is smaller than the sum of its proper divisors (37079562252).

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

27804974388 is a wasteful number, since it uses less digits than its factorization.

27804974388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223687 (or 223685 counting only the distinct ones).

The product of its (nonzero) digits is 21676032, while the sum is 60.

The spelling of 27804974388 in words is "twenty-seven billion, eight hundred four million, nine hundred seventy-four thousand, three hundred eighty-eight".