6708985920 has 1344 divisors, whose sum is σ = 31522659840. Its totient is φ = 1328431104.

The previous prime is 6708985909. The next prime is 6708985939. The reversal of 6708985920 is 295898076.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (1344).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 126584614 + ... + 126584666.

It is an arithmetic number, because the mean of its divisors is an integer number (23454360).

Almost surely, 2^6708985920 is an apocalyptic number.

6708985920 is a gapful number since it is divisible by the number (60) 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 6708985920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15761329920).

6708985920 is an abundant number, since it is smaller than the sum of its proper divisors (24813673920).

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

6708985920 is a wasteful number, since it uses less digits than its factorization.

6708985920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 6708985920 is about 81908.3995692749. The cubic root of 6708985920 is about 1886.0460549669.

The spelling of 6708985920 in words is "six billion, seven hundred eight million, nine hundred eighty-five thousand, nine hundred twenty".