8689645157 has 8 divisors (see below), whose sum is σ = 9238541184. Its totient is φ = 8155006288.

The previous prime is 8689645147. The next prime is 8689645163. The reversal of 8689645157 is 7515469868.

It is a happy number.

8689645157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 8689645157 - 2⁴ = 8689645141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8689645096 and 8689645105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689645127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3563033 + ... + 3565470.

It is an arithmetic number, because the mean of its divisors is an integer number (1154817648).

Almost surely, 2^8689645157 is an apocalyptic number.

It is an amenable number.

8689645157 is a deficient number, since it is larger than the sum of its proper divisors (548896027).

8689645157 is a wasteful number, since it uses less digits than its factorization.

8689645157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128579.

The product of its digits is 14515200, while the sum is 59.

The square root of 8689645157 is about 93218.2662196632. The cubic root of 8689645157 is about 2055.8938186880.

The spelling of 8689645157 in words is "eight billion, six hundred eighty-nine million, six hundred forty-five thousand, one hundred fifty-seven".