27987208704 has 480 divisors, whose sum is σ = 102667428864. Its totient is φ = 7139819520.

The previous prime is 27987208693. The next prime is 27987208741. The reversal of 27987208704 is 40780278972.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12998092 + ... + 13000244.

Almost surely, 2^27987208704 is an apocalyptic number.

27987208704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27987208704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51333714432).

27987208704 is an abundant number, since it is smaller than the sum of its proper divisors (74680220160).

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

27987208704 is a wasteful number, since it uses less digits than its factorization.

27987208704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228 (or 2209 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 54.

The spelling of 27987208704 in words is "twenty-seven billion, nine hundred eighty-seven million, two hundred eight thousand, seven hundred four".