9797657923728 has 120 divisors (see below), whose sum is σ = 29858259038400. Its totient is φ = 2987307654912.

The previous prime is 9797657923693. The next prime is 9797657923751. The reversal of 9797657923728 is 8273297567979.

9797657923728 is a `hidden beast` number, since 9 + 7 + 9 + 7 + 6 + 579 + 2 + 37 + 2 + 8 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 61662300 + ... + 61820987.

It is an arithmetic number, because the mean of its divisors is an integer number (248818825320).

Almost surely, 2^{9797657923728} is an apocalyptic number.

It is an amenable number.

9797657923728 is an abundant number, since it is smaller than the sum of its proper divisors (20060601114672).

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

9797657923728 is a wasteful number, since it uses less digits than its factorization.

9797657923728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123483349 (or 123483340 counting only the distinct ones).

The product of its digits is 5040947520, while the sum is 81.

The spelling of 9797657923728 in words is "nine trillion, seven hundred ninety-seven billion, six hundred fifty-seven million, nine hundred twenty-three thousand, seven hundred twenty-eight".