28032620009472 has 960 divisors, whose sum is σ = 96180811927200. Its totient is φ = 8058175488000.

The previous prime is 28032620009447. The next prime is 28032620009473. The reversal of 28032620009472 is 27490002623082.

28032620009472 is a `hidden beast` number, since 2 + 80 + 326 + 200 + 0 + 9 + 47 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28032620009473) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5095910722 + ... + 5095916222.

Almost surely, 2^{28032620009472} 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 28032620009472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48090405963600).

28032620009472 is an abundant number, since it is smaller than the sum of its proper divisors (68148191917728).

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

28032620009472 is a wasteful number, since it uses less digits than its factorization.

28032620009472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5704 (or 5675 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The spelling of 28032620009472 in words is "twenty-eight trillion, thirty-two billion, six hundred twenty million, nine thousand, four hundred seventy-two".