8500853813680 has 80 divisors (see below), whose sum is σ = 19835792570880. Its totient is φ = 3388082540544.

The previous prime is 8500853813657. The next prime is 8500853813687. The reversal of 8500853813680 is 863183580058.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (8500853813687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61855281 + ... + 61992559.

It is an arithmetic number, because the mean of its divisors is an integer number (247947407136).

Almost surely, 2^{8500853813680} is an apocalyptic number.

8500853813680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8500853813680 is an abundant number, since it is smaller than the sum of its proper divisors (11334938757200).

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

8500853813680 is a wasteful number, since it uses less digits than its factorization.

8500853813680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140078 (or 140072 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 55.

The spelling of 8500853813680 in words is "eight trillion, five hundred billion, eight hundred fifty-three million, eight hundred thirteen thousand, six hundred eighty".