6861303220 has 12 divisors (see below), whose sum is σ = 14408736804. Its totient is φ = 2744521280.

The previous prime is 6861303187. The next prime is 6861303233. The reversal of 6861303220 is 223031686.

It can be written as a sum of positive squares in 2 ways, for example, as 2953052964 + 3908250256 = 54342^2 + 62516^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171532561 + ... + 171532600.

It is an arithmetic number, because the mean of its divisors is an integer number (1200728067).

Almost surely, 2^6861303220 is an apocalyptic number.

It is an amenable number.

6861303220 is an abundant number, since it is smaller than the sum of its proper divisors (7547433584).

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

6861303220 is a wasteful number, since it uses less digits than its factorization.

6861303220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343065170 (or 343065168 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 6861303220 is about 82832.9838892696. The cubic root of 6861303220 is about 1900.2126465600.

The spelling of 6861303220 in words is "six billion, eight hundred sixty-one million, three hundred three thousand, two hundred twenty".