6809660928 has 360 divisors, whose sum is σ = 23729778072. Its totient is φ = 1943875584.

The previous prime is 6809660927. The next prime is 6809660929. The reversal of 6809660928 is 8290669086.

6809660928 is a `hidden beast` number, since 6 + 8 + 0 + 9 + 6 + 609 + 28 = 666.

It is an interprime number because it is at equal distance from previous prime (6809660927) and next prime (6809660929).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6809660927) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6095826 + ... + 6096942.

Almost surely, 2^6809660928 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 6809660928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11864889036).

6809660928 is an abundant number, since it is smaller than the sum of its proper divisors (16920117144).

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

6809660928 is an equidigital number, since it uses as much as digits as its factorization.

6809660928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1164 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 6809660928 is about 82520.6697015966. The cubic root of 6809660928 is about 1895.4332547382.

The spelling of 6809660928 in words is "six billion, eight hundred nine million, six hundred sixty thousand, nine hundred twenty-eight".