27081635328 has 180 divisors, whose sum is σ = 85912550724. Its totient is φ = 8206387200.

The previous prime is 27081635299. The next prime is 27081635359. The reversal of 27081635328 is 82353618072.

27081635328 is a `hidden beast` number, since 2 + 7 + 0 + 8 + 1 + 635 + 3 + 2 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 533283 + ... + 581853.

Almost surely, 2^27081635328 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 27081635328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42956275362).

27081635328 is an abundant number, since it is smaller than the sum of its proper divisors (58830915396).

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

27081635328 is a wasteful number, since it uses less digits than its factorization.

27081635328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48617 (or 48587 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 27081635328 in words is "twenty-seven billion, eighty-one million, six hundred thirty-five thousand, three hundred twenty-eight".