27081651392 has 84 divisors (see below), whose sum is σ = 58117557120. Its totient is φ = 12505016832.

The previous prime is 27081651391. The next prime is 27081651413. The reversal of 27081651392 is 29315618072.

It is not an unprimeable number, because it can be changed into a prime (27081651391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 968033 + ... + 995615.

It is an arithmetic number, because the mean of its divisors is an integer number (691875680).

Almost surely, 2^27081651392 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 27081651392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29058778560).

27081651392 is an abundant number, since it is smaller than the sum of its proper divisors (31035905728).

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

27081651392 is a wasteful number, since it uses less digits than its factorization.

27081651392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27670 (or 27637 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 27081651392 in words is "twenty-seven billion, eighty-one million, six hundred fifty-one thousand, three hundred ninety-two".