8689180920 has 128 divisors (see below), whose sum is σ = 29831155200. Its totient is φ = 1983453696.

The previous prime is 8689180919. The next prime is 8689180921. The reversal of 8689180920 is 290819868.

It is an interprime number because it is at equal distance from previous prime (8689180919) and next prime (8689180921).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8689180921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 662991 + ... + 675969.

It is an arithmetic number, because the mean of its divisors is an integer number (233055900).

Almost surely, 2^8689180920 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 8689180920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14915577600).

8689180920 is an abundant number, since it is smaller than the sum of its proper divisors (21141974280).

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

8689180920 is a wasteful number, since it uses less digits than its factorization.

8689180920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13797 (or 13793 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The square root of 8689180920 is about 93215.7761325839. The cubic root of 8689180920 is about 2055.8572065687.

The spelling of 8689180920 in words is "eight billion, six hundred eighty-nine million, one hundred eighty thousand, nine hundred twenty".