27031799808 has 288 divisors, whose sum is σ = 86379111000. Its totient is φ = 8090025984.

The previous prime is 27031799797. The next prime is 27031799843. The reversal of 27031799808 is 80899713072.

It can be written as a sum of positive squares in 4 ways, for example, as 18766808064 + 8264991744 = 136992^2 + 90912^2 .

It is a tau number, because it is divible by the number of its divisors (288).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8864268 + ... + 8867316.

Almost surely, 2^27031799808 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 27031799808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43189555500).

27031799808 is an abundant number, since it is smaller than the sum of its proper divisors (59347311192).

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

27031799808 is a wasteful number, since it uses less digits than its factorization.

27031799808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3127 (or 3104 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 27031799808 in words is "twenty-seven billion, thirty-one million, seven hundred ninety-nine thousand, eight hundred eight".