9673992578880 has 448 divisors, whose sum is σ = 39140970516480. Its totient is φ = 2203380983808.

The previous prime is 9673992578857. The next prime is 9673992578891. The reversal of 9673992578880 is 888752993769.

9673992578880 is a `hidden beast` number, since 9 + 6 + 7 + 39 + 9 + 2 + 578 + 8 + 8 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a super-2 number, since 2×9673992578880² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9673992578880.

It is a congruent number.

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, 16833237 + ... + 17398443.

It is an arithmetic number, because the mean of its divisors is an integer number (87368237760).

Almost surely, 2^{9673992578880} is an apocalyptic number.

9673992578880 is a gapful number since it is divisible by the number (90) 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 9673992578880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19570485258240).

9673992578880 is an abundant number, since it is smaller than the sum of its proper divisors (29466977937600).

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

9673992578880 is a wasteful number, since it uses less digits than its factorization.

9673992578880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565523 (or 565507 counting only the distinct ones).

The product of its (nonzero) digits is 3292047360, while the sum is 81.

The spelling of 9673992578880 in words is "nine trillion, six hundred seventy-three billion, nine hundred ninety-two million, five hundred seventy-eight thousand, eight hundred eighty".