8685740880 has 60 divisors (see below), whose sum is σ = 29169615540. Its totient is φ = 2316197376.

The previous prime is 8685740867. The next prime is 8685740881. The reversal of 8685740880 is 880475868.

8685740880 is a `hidden beast` number, since 8 + 68 + 574 + 0 + 8 + 8 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3216250944 + 5469489936 = 56712^2 + 73956^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8685740881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6031045 + ... + 6032484.

It is an arithmetic number, because the mean of its divisors is an integer number (486160259).

Almost surely, 2^8685740880 is an apocalyptic number.

8685740880 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8685740880 is an abundant number, since it is smaller than the sum of its proper divisors (20483874660).

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

8685740880 is a wasteful number, since it uses less digits than its factorization.

8685740880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12063548 (or 12063539 counting only the distinct ones).

The product of its (nonzero) digits is 3440640, while the sum is 54.

The square root of 8685740880 is about 93197.3222791299. The cubic root of 8685740880 is about 2055.5858666655.

The spelling of 8685740880 in words is "eight billion, six hundred eighty-five million, seven hundred forty thousand, eight hundred eighty".