27732093220 has 96 divisors (see below), whose sum is σ = 63162489600. Its totient is φ = 10167151104.

The previous prime is 27732093167. The next prime is 27732093223. The reversal of 27732093220 is 2239023772.

It is a self number, because there is not a number n which added to its sum of digits gives 27732093220.

It is not an unprimeable number, because it can be changed into a prime (27732093223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30175921 + ... + 30176839.

It is an arithmetic number, because the mean of its divisors is an integer number (657942600).

Almost surely, 2^27732093220 is an apocalyptic number.

27732093220 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 27732093220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31581244800).

27732093220 is an abundant number, since it is smaller than the sum of its proper divisors (35430396380).

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

27732093220 is a wasteful number, since it uses less digits than its factorization.

27732093220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1637 (or 1635 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 37.

The spelling of 27732093220 in words is "twenty-seven billion, seven hundred thirty-two million, ninety-three thousand, two hundred twenty".