6698844880 has 320 divisors, whose sum is σ = 19873728000. Its totient is φ = 2086318080.

The previous prime is 6698844851. The next prime is 6698844881. The reversal of 6698844880 is 884488966.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6698844881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31747975 + ... + 31748185.

It is an arithmetic number, because the mean of its divisors is an integer number (62105400).

Almost surely, 2^6698844880 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 6698844880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9936864000).

6698844880 is an abundant number, since it is smaller than the sum of its proper divisors (13174883120).

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

6698844880 is a wasteful number, since it uses less digits than its factorization.

6698844880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347 (or 327 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 61.

The square root of 6698844880 is about 81846.4713961451. The cubic root of 6698844880 is about 1885.0952846739.

The spelling of 6698844880 in words is "six billion, six hundred ninety-eight million, eight hundred forty-four thousand, eight hundred eighty".