27687328080 has 160 divisors (see below), whose sum is σ = 86446217088. Its totient is φ = 7330560000.

The previous prime is 27687328051. The next prime is 27687328111. The reversal of 27687328080 is 8082378672.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27770142 + ... + 27771138.

Almost surely, 2^27687328080 is an apocalyptic number.

27687328080 is a gapful number since it is divisible by the number (20) 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 27687328080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43223108544).

27687328080 is an abundant number, since it is smaller than the sum of its proper divisors (58758889008).

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

27687328080 is a wasteful number, since it uses less digits than its factorization.

27687328080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1725 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 51.

The spelling of 27687328080 in words is "twenty-seven billion, six hundred eighty-seven million, three hundred twenty-eight thousand, eighty".