6808863780 has 96 divisors (see below), whose sum is σ = 21224515200. Its totient is φ = 1812150144.

The previous prime is 6808863773. The next prime is 6808863829. The reversal of 6808863780 is 873688086.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 270366 + ... + 294474.

It is an arithmetic number, because the mean of its divisors is an integer number (221088700).

Almost surely, 2^6808863780 is an apocalyptic number.

6808863780 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 6808863780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10612257600).

6808863780 is an abundant number, since it is smaller than the sum of its proper divisors (14415651420).

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

6808863780 is a wasteful number, since it uses less digits than its factorization.

6808863780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24650 (or 24642 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The square root of 6808863780 is about 82515.8395703516. The cubic root of 6808863780 is about 1895.3592912029.

The spelling of 6808863780 in words is "six billion, eight hundred eight million, eight hundred sixty-three thousand, seven hundred eighty".