9280821065472 has 576 divisors, whose sum is σ = 30729420126720. Its totient is φ = 2739002572800.

The previous prime is 9280821065431. The next prime is 9280821065473. The reversal of 9280821065472 is 2745601280829.

9280821065472 is a `hidden beast` number, since 9 + 2 + 8 + 0 + 82 + 10 + 6 + 547 + 2 = 666.

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

It is a super-2 number, since 2×9280821065472² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9280821065473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 552059947 + ... + 552076757.

It is an arithmetic number, because the mean of its divisors is an integer number (53349687720).

Almost surely, 2^{9280821065472} 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 9280821065472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15364710063360).

9280821065472 is an abundant number, since it is smaller than the sum of its proper divisors (21448599061248).

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

9280821065472 is a wasteful number, since it uses less digits than its factorization.

9280821065472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17037 (or 17017 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 9280821065472 in words is "nine trillion, two hundred eighty billion, eight hundred twenty-one million, sixty-five thousand, four hundred seventy-two".