27723209472 has 576 divisors, whose sum is σ = 100662912000. Its totient is φ = 7349501952.

The previous prime is 27723209467. The next prime is 27723209531. The reversal of 27723209472 is 27490232772.

It is a tau number, because it is divible by the number of its divisors (576).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48722404 + ... + 48722972.

It is an arithmetic number, because the mean of its divisors is an integer number (174762000).

Almost surely, 2^27723209472 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 27723209472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50331456000).

27723209472 is an abundant number, since it is smaller than the sum of its proper divisors (72939702528).

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

27723209472 is a wasteful number, since it uses less digits than its factorization.

27723209472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 673 (or 653 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 45.

The spelling of 27723209472 in words is "twenty-seven billion, seven hundred twenty-three million, two hundred nine thousand, four hundred seventy-two".