27704291328 has 520 divisors, whose sum is σ = 96415278080. Its totient is φ = 7763558400.

The previous prime is 27704291317. The next prime is 27704291359. The reversal of 27704291328 is 82319240772.

27704291328 is a `hidden beast` number, since 27 + 70 + 429 + 132 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 183472053 + ... + 183472203.

Almost surely, 2^27704291328 is an apocalyptic number.

27704291328 is a gapful number since it is divisible by the number (28) 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 27704291328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48207639040).

27704291328 is an abundant number, since it is smaller than the sum of its proper divisors (68710986752).

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

27704291328 is an equidigital number, since it uses as much as digits as its factorization.

27704291328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 27704291328 in words is "twenty-seven billion, seven hundred four million, two hundred ninety-one thousand, three hundred twenty-eight".