9797543859 has 4 divisors (see below), whose sum is σ = 13063391816. Its totient is φ = 6531695904.

The previous prime is 9797543843. The next prime is 9797543863. The reversal of 9797543859 is 9583457979.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9797543859 - 2⁴ = 9797543843 is a prime.

It is a super-2 number, since 2×9797543859² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9797543859.

It is not an unprimeable number, because it can be changed into a prime (9797543839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1632923974 + ... + 1632923979.

It is an arithmetic number, because the mean of its divisors is an integer number (3265847954).

Almost surely, 2^9797543859 is an apocalyptic number.

9797543859 is a deficient number, since it is larger than the sum of its proper divisors (3265847957).

9797543859 is a wasteful number, since it uses less digits than its factorization.

9797543859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265847956.

The product of its digits is 85730400, while the sum is 66.

The square root of 9797543859 is about 98982.5432033346. The cubic root of 9797543859 is about 2139.7961679531.

The spelling of 9797543859 in words is "nine billion, seven hundred ninety-seven million, five hundred forty-three thousand, eight hundred fifty-nine".