27691884352 has 224 divisors, whose sum is σ = 63993369600. Its totient is φ = 11773132800.

The previous prime is 27691884323. The next prime is 27691884361. The reversal of 27691884352 is 25348819672.

It is a junction number, because it is equal to n+sod(n) for n = 27691884293 and 27691884302.

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, 102943674 + ... + 102943942.

Almost surely, 2^27691884352 is an apocalyptic number.

27691884352 is a gapful number since it is divisible by the number (22) 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 27691884352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31996684800).

27691884352 is an abundant number, since it is smaller than the sum of its proper divisors (36301485248).

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

27691884352 is a wasteful number, since it uses less digits than its factorization.

27691884352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 455 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 55.

The spelling of 27691884352 in words is "twenty-seven billion, six hundred ninety-one million, eight hundred eighty-four thousand, three hundred fifty-two".