9796531680 has 576 divisors, whose sum is σ = 38285799552. Its totient is φ = 2262712320.

The previous prime is 9796531609. The next prime is 9796531721. The reversal of 9796531680 is 861356979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26263974 + ... + 26264346.

It is an arithmetic number, because the mean of its divisors is an integer number (66468402).

Almost surely, 2^9796531680 is an apocalyptic number.

9796531680 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 9796531680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19142899776).

9796531680 is an abundant number, since it is smaller than the sum of its proper divisors (28489267872).

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

9796531680 is a wasteful number, since it uses less digits than its factorization.

9796531680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 54.

The square root of 9796531680 is about 98977.4301545559. The cubic root of 9796531680 is about 2139.7224783507.

The spelling of 9796531680 in words is "nine billion, seven hundred ninety-six million, five hundred thirty-one thousand, six hundred eighty".