27681483800 has 72 divisors (see below), whose sum is σ = 67771899300. Its totient is φ = 10485938880.

The previous prime is 27681483793. The next prime is 27681483811. The reversal of 27681483800 is 838418672.

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, 10254851 + ... + 10257549.

Almost surely, 2^27681483800 is an apocalyptic number.

27681483800 is a gapful number since it is divisible by the number (20) 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 27681483800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33885949650).

27681483800 is an abundant number, since it is smaller than the sum of its proper divisors (40090415500).

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

27681483800 is an equidigital number, since it uses as much as digits as its factorization.

27681483800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433 (or 2725 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 47.

The spelling of 27681483800 in words is "twenty-seven billion, six hundred eighty-one million, four hundred eighty-three thousand, eight hundred".