8686494720 has 264 divisors, whose sum is σ = 30349313280. Its totient is φ = 2297118720.

The previous prime is 8686494701. The next prime is 8686494737. The reversal of 8686494720 is 274946868.

8686494720 is a `hidden beast` number, since 8 + 6 + 86 + 494 + 72 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6035761 + ... + 6037199.

It is an arithmetic number, because the mean of its divisors is an integer number (114959520).

Almost surely, 2^8686494720 is an apocalyptic number.

8686494720 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8686494720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15174656640).

8686494720 is an abundant number, since it is smaller than the sum of its proper divisors (21662818560).

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

8686494720 is a wasteful number, since it uses less digits than its factorization.

8686494720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601 (or 1580 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The square root of 8686494720 is about 93201.3665135871. The cubic root of 8686494720 is about 2055.6453334032.

The spelling of 8686494720 in words is "eight billion, six hundred eighty-six million, four hundred ninety-four thousand, seven hundred twenty".