6989880984 has 32 divisors (see below), whose sum is σ = 17846507520. Its totient is φ = 2280386336.

The previous prime is 6989880979. The next prime is 6989881009. The reversal of 6989880984 is 4890889896.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3097224 + ... + 3099479.

It is an arithmetic number, because the mean of its divisors is an integer number (557703360).

Almost surely, 2^6989880984 is an apocalyptic number.

It is an amenable number.

6989880984 is an abundant number, since it is smaller than the sum of its proper divisors (10856626536).

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

6989880984 is a wasteful number, since it uses less digits than its factorization.

6989880984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196759 (or 6196755 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 69.

The square root of 6989880984 is about 83605.5080960579. The cubic root of 6989880984 is about 1912.0089772458.

The spelling of 6989880984 in words is "six billion, nine hundred eighty-nine million, eight hundred eighty thousand, nine hundred eighty-four".