6986398608 has 320 divisors, whose sum is σ = 24929118720. Its totient is φ = 1827422208.

The previous prime is 6986398589. The next prime is 6986398609. The reversal of 6986398608 is 8068936896.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (6986398609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1900260 + ... + 1903932.

It is an arithmetic number, because the mean of its divisors is an integer number (77903496).

Almost surely, 2^6986398608 is an apocalyptic number.

6986398608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6986398608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12464559360).

6986398608 is an abundant number, since it is smaller than the sum of its proper divisors (17942720112).

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

6986398608 is a wasteful number, since it uses less digits than its factorization.

6986398608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751 (or 3739 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The square root of 6986398608 is about 83584.6792659995. The cubic root of 6986398608 is about 1911.6914019667.

The spelling of 6986398608 in words is "six billion, nine hundred eighty-six million, three hundred ninety-eight thousand, six hundred eight".