9189645697 has 8 divisors (see below), whose sum is σ = 9817690400. Its totient is φ = 8576038944.

The previous prime is 9189645679. The next prime is 9189645721. The reversal of 9189645697 is 7965469819.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9189645697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9189645397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3608172 + ... + 3610717.

It is an arithmetic number, because the mean of its divisors is an integer number (1227211300).

Almost surely, 2^9189645697 is an apocalyptic number.

It is an amenable number.

9189645697 is a deficient number, since it is larger than the sum of its proper divisors (628044703).

9189645697 is a wasteful number, since it uses less digits than its factorization.

9189645697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7218975.

The product of its digits is 29393280, while the sum is 64.

The square root of 9189645697 is about 95862.6397351961. The cubic root of 9189645697 is about 2094.5927174044.

The spelling of 9189645697 in words is "nine billion, one hundred eighty-nine million, six hundred forty-five thousand, six hundred ninety-seven".