27220843008 has 240 divisors, whose sum is σ = 80649710856. Its totient is φ = 8835563520.

The previous prime is 27220842977. The next prime is 27220843009. The reversal of 27220843008 is 80034802272.

27220843008 is a `hidden beast` number, since 272 + 2 + 0 + 84 + 300 + 8 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 14159096064 + 13061746944 = 118992^2 + 114288^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (27220843009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31762516 + ... + 31763372.

Almost surely, 2^27220843008 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 27220843008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40324855428).

27220843008 is an abundant number, since it is smaller than the sum of its proper divisors (53428867848).

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

27220843008 is a wasteful number, since it uses less digits than its factorization.

27220843008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The spelling of 27220843008 in words is "twenty-seven billion, two hundred twenty million, eight hundred forty-three thousand, eight".