6995988408 has 32 divisors (see below), whose sum is σ = 17736312960. Its totient is φ = 2299150560.

The previous prime is 6995988401. The next prime is 6995988409. The reversal of 6995988408 is 8048895996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6995988401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051110 + ... + 2054517.

It is an arithmetic number, because the mean of its divisors is an integer number (554259780).

Almost surely, 2^6995988408 is an apocalyptic number.

It is an amenable number.

6995988408 is an abundant number, since it is smaller than the sum of its proper divisors (10740324552).

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

6995988408 is a wasteful number, since it uses less digits than its factorization.

6995988408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105707 (or 4105703 counting only the distinct ones).

The product of its (nonzero) digits is 44789760, while the sum is 66.

The square root of 6995988408 is about 83642.0253700256. The cubic root of 6995988408 is about 1912.5656891616.

The spelling of 6995988408 in words is "six billion, nine hundred ninety-five million, nine hundred eighty-eight thousand, four hundred eight".