6928809920 has 112 divisors (see below), whose sum is σ = 17186148000. Its totient is φ = 2657464320.

The previous prime is 6928809919. The next prime is 6928809929. The reversal of 6928809920 is 299088296.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6928809929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380215 + ... + 1385225.

It is an arithmetic number, because the mean of its divisors is an integer number (153447750).

Almost surely, 2^6928809920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6928809920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8593074000).

6928809920 is an abundant number, since it is smaller than the sum of its proper divisors (10257338080).

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

6928809920 is a wasteful number, since it uses less digits than its factorization.

6928809920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206 (or 5196 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 53.

The square root of 6928809920 is about 83239.4733284636. The cubic root of 6928809920 is about 1906.4242300734.

The spelling of 6928809920 in words is "six billion, nine hundred twenty-eight million, eight hundred nine thousand, nine hundred twenty".