6696733728 has 144 divisors (see below), whose sum is σ = 18512051040. Its totient is φ = 2119468032.

The previous prime is 6696733709. The next prime is 6696733753. The reversal of 6696733728 is 8273376966.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8277388 + ... + 8278196.

It is an arithmetic number, because the mean of its divisors is an integer number (128555910).

Almost surely, 2^6696733728 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 6696733728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9256025520).

6696733728 is an abundant number, since it is smaller than the sum of its proper divisors (11815317312).

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

6696733728 is a wasteful number, since it uses less digits than its factorization.

6696733728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031 (or 1000 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 57.

The square root of 6696733728 is about 81833.5733547057. The cubic root of 6696733728 is about 1884.8972335722.

The spelling of 6696733728 in words is "six billion, six hundred ninety-six million, seven hundred thirty-three thousand, seven hundred twenty-eight".