9697957668 has 108 divisors (see below), whose sum is σ = 28795009152. Its totient is φ = 2695861440.

The previous prime is 9697957651. The next prime is 9697957669. The reversal of 9697957668 is 8667597969.

It is a junction number, because it is equal to n+sod(n) for n = 9697957596 and 9697957605.

It is not an unprimeable number, because it can be changed into a prime (9697957669) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 330933 + ... + 359043.

Almost surely, 2^9697957668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9697957668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14397504576).

9697957668 is an abundant number, since it is smaller than the sum of its proper divisors (19097051484).

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

9697957668 is a wasteful number, since it uses less digits than its factorization.

9697957668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28202 (or 28160 counting only the distinct ones).

The product of its digits is 308629440, while the sum is 72.

The square root of 9697957668 is about 98478.2091023187. The cubic root of 9697957668 is about 2132.5215472434.

The spelling of 9697957668 in words is "nine billion, six hundred ninety-seven million, nine hundred fifty-seven thousand, six hundred sixty-eight".