9797120992620 has 2304 divisors, whose sum is σ = 38464118784000. Its totient is φ = 2066814517248.

The previous prime is 9797120992577. The next prime is 9797120992651. The reversal of 9797120992620 is 262990217979.

It is an unprimeable number.

It is a polite number, since it can be written in 767 ways as a sum of consecutive naturals, for example, 95117679489 + ... + 95117679591.

It is an arithmetic number, because the mean of its divisors is an integer number (16694496000).

Almost surely, 2^{9797120992620} is an apocalyptic number.

9797120992620 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 9797120992620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19232059392000).

9797120992620 is an abundant number, since it is smaller than the sum of its proper divisors (28666997791380).

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

9797120992620 is a wasteful number, since it uses less digits than its factorization.

9797120992620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 63.

The spelling of 9797120992620 in words is "nine trillion, seven hundred ninety-seven billion, one hundred twenty million, nine hundred ninety-two thousand, six hundred twenty".