6817958220 has 24 divisors (see below), whose sum is σ = 19090283184. Its totient is φ = 1818122176.

The previous prime is 6817958219. The next prime is 6817958249. The reversal of 6817958220 is 228597186.

It is a self number, because there is not a number n which added to its sum of digits gives 6817958220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56816259 + ... + 56816378.

It is an arithmetic number, because the mean of its divisors is an integer number (795428466).

Almost surely, 2^6817958220 is an apocalyptic number.

6817958220 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6817958220 is an abundant number, since it is smaller than the sum of its proper divisors (12272324964).

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

6817958220 is a wasteful number, since it uses less digits than its factorization.

6817958220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113632649 (or 113632647 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 6817958220 is about 82570.9284191476. The cubic root of 6817958220 is about 1896.2027781215.

The spelling of 6817958220 in words is "six billion, eight hundred seventeen million, nine hundred fifty-eight thousand, two hundred twenty".