6981773904 has 240 divisors, whose sum is σ = 23125365120. Its totient is φ = 1924715520.

The previous prime is 6981773737. The next prime is 6981773917. The reversal of 6981773904 is 4093771896.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4885062 + ... + 4886490.

It is an arithmetic number, because the mean of its divisors is an integer number (96355688).

Almost surely, 2^6981773904 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 6981773904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11562682560).

6981773904 is an abundant number, since it is smaller than the sum of its proper divisors (16143591216).

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

6981773904 is a wasteful number, since it uses less digits than its factorization.

6981773904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1618 (or 1609 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 6981773904 is about 83557.0099034186. The cubic root of 6981773904 is about 1911.2694889097.

The spelling of 6981773904 in words is "six billion, nine hundred eighty-one million, seven hundred seventy-three thousand, nine hundred four".