6878216445584 has 20 divisors (see below), whose sum is σ = 14538048396720. Its totient is φ = 3126462020640.

The previous prime is 6878216445571. The next prime is 6878216445619. The reversal of 6878216445584 is 4855446128786.

It is a super-2 number, since 2×6878216445584² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19540387454 + ... + 19540387805.

It is an arithmetic number, because the mean of its divisors is an integer number (726902419836).

Almost surely, 2^{6878216445584} is an apocalyptic number.

It is an amenable number.

6878216445584 is an abundant number, since it is smaller than the sum of its proper divisors (7659831951136).

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

6878216445584 is a wasteful number, since it uses less digits than its factorization.

6878216445584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39080775278 (or 39080775272 counting only the distinct ones).

The product of its digits is 412876800, while the sum is 68.

The spelling of 6878216445584 in words is "six trillion, eight hundred seventy-eight billion, two hundred sixteen million, four hundred forty-five thousand, five hundred eighty-four".