27984087012 has 48 divisors (see below), whose sum is σ = 76641111680. Its totient is φ = 7779359232.

The previous prime is 27984087011. The next prime is 27984087023. The reversal of 27984087012 is 21078048972.

It is not an unprimeable number, because it can be changed into a prime (27984087011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4498837 + ... + 4505052.

Almost surely, 2^27984087012 is an apocalyptic number.

It is an amenable number.

27984087012 is an abundant number, since it is smaller than the sum of its proper divisors (48657024668).

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

27984087012 is a wasteful number, since it uses less digits than its factorization.

27984087012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9003940 (or 9003938 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 48.

The spelling of 27984087012 in words is "twenty-seven billion, nine hundred eighty-four million, eighty-seven thousand, twelve".