6808841994240 has 2880 divisors, whose sum is σ = 30457267276800. Its totient is φ = 1429450260480.

The previous prime is 6808841994209. The next prime is 6808841994277. The reversal of 6808841994240 is 424991488086.

6808841994240 is a `hidden beast` number, since 6 + 8 + 0 + 88 + 41 + 99 + 424 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (2880).

It is a super-2 number, since 2×6808841994240² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 66105262029 + ... + 66105262131.

Almost surely, 2^{6808841994240} is an apocalyptic number.

6808841994240 is a gapful number since it is divisible by the number (60) 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 6808841994240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15228633638400).

6808841994240 is an abundant number, since it is smaller than the sum of its proper divisors (23648425282560).

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

6808841994240 is a wasteful number, since it uses less digits than its factorization.

6808841994240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 63.

The spelling of 6808841994240 in words is "six trillion, eight hundred eight billion, eight hundred forty-one million, nine hundred ninety-four thousand, two hundred forty".