8685868620 has 192 divisors, whose sum is σ = 30076623360. Its totient is φ = 1841356800.

The previous prime is 8685868613. The next prime is 8685868663. The reversal of 8685868620 is 268685868.

8685868620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 136380 + ... + 189660.

It is an arithmetic number, because the mean of its divisors is an integer number (156649080).

Almost surely, 2^8685868620 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 8685868620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15038311680).

8685868620 is an abundant number, since it is smaller than the sum of its proper divisors (21390754740).

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

8685868620 is a wasteful number, since it uses less digits than its factorization.

8685868620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53336 (or 53334 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 57.

The square root of 8685868620 is about 93198.0075967292. The cubic root of 8685868620 is about 2055.5959436893.

The spelling of 8685868620 in words is "eight billion, six hundred eighty-five million, eight hundred sixty-eight thousand, six hundred twenty".