9797587236864 has 864 divisors, whose sum is σ = 35597677227840. Its totient is φ = 2578399100928.

The previous prime is 9797587236863. The next prime is 9797587236979. The reversal of 9797587236864 is 4686327857979.

It is a happy number.

9797587236864 is a `hidden beast` number, since 9 + 7 + 9 + 7 + 587 + 23 + 6 + 8 + 6 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9797587236863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 721624444 + ... + 721638020.

It is an arithmetic number, because the mean of its divisors is an integer number (41201015310).

Almost surely, 2^{9797587236864} is an apocalyptic number.

9797587236864 is a gapful number since it is divisible by the number (94) 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 9797587236864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17798838613920).

9797587236864 is an abundant number, since it is smaller than the sum of its proper divisors (25800089990976).

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

9797587236864 is a wasteful number, since it uses less digits than its factorization.

9797587236864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13683 (or 13653 counting only the distinct ones).

The product of its digits is 7681443840, while the sum is 81.

The spelling of 9797587236864 in words is "nine trillion, seven hundred ninety-seven billion, five hundred eighty-seven million, two hundred thirty-six thousand, eight hundred sixty-four".