108865057860 has 720 divisors, whose sum is σ = 388549066752. Its totient is φ = 25474176000.

The previous prime is 108865057859. The next prime is 108865057897. The reversal of 108865057860 is 68750568801.

108865057860 is a `hidden beast` number, since 1 + 0 + 8 + 8 + 6 + 5 + 0 + 578 + 60 = 666.

It is a super-2 number, since 2×108865057860² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 108865057797 and 108865057806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 857205117 + ... + 857205243.

Almost surely, 2^108865057860 is an apocalyptic number.

108865057860 is a gapful number since it is divisible by the number (10) 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 108865057860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194274533376).

108865057860 is an abundant number, since it is smaller than the sum of its proper divisors (279684008892).

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

108865057860 is a wasteful number, since it uses less digits than its factorization.

108865057860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 108865057860 in words is "one hundred eight billion, eight hundred sixty-five million, fifty-seven thousand, eight hundred sixty".