860539680 has 768 divisors, whose sum is σ = 4064256000. Its totient is φ = 164229120.

The previous prime is 860539663. The next prime is 860539699. The reversal of 860539680 is 86935068.

860539680 is a `hidden beast` number, since 8 + 605 + 39 + 6 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4324221 + ... + 4324419.

It is an arithmetic number, because the mean of its divisors is an integer number (5292000).

Almost surely, 2^860539680 is an apocalyptic number.

860539680 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 860539680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2032128000).

860539680 is an abundant number, since it is smaller than the sum of its proper divisors (3203716320).

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

860539680 is a wasteful number, since it uses less digits than its factorization.

860539680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 860539680 is about 29334.9566217508. The cubic root of 860539680 is about 951.1674216878.

The spelling of 860539680 in words is "eight hundred sixty million, five hundred thirty-nine thousand, six hundred eighty".