6859820920 has 32 divisors (see below), whose sum is σ = 15450261120. Its totient is φ = 2741143680.

The previous prime is 6859820873. The next prime is 6859820923. The reversal of 6859820920 is 290289586.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6859820923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46887 + ... + 126166.

It is an arithmetic number, because the mean of its divisors is an integer number (482820660).

Almost surely, 2^6859820920 is an apocalyptic number.

It is an amenable number.

6859820920 is an abundant number, since it is smaller than the sum of its proper divisors (8590440200).

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

6859820920 is a wasteful number, since it uses less digits than its factorization.

6859820920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174055 (or 174051 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 6859820920 is about 82824.0358833111. The cubic root of 6859820920 is about 1900.0757975302.

The spelling of 6859820920 in words is "six billion, eight hundred fifty-nine million, eight hundred twenty thousand, nine hundred twenty".