6809968245872 has 80 divisors (see below), whose sum is σ = 14639491584000. Its totient is φ = 3042614891520.

The previous prime is 6809968245869. The next prime is 6809968245881. The reversal of 6809968245872 is 2785428699086.

It is a self number, because there is not a number n which added to its sum of digits gives 6809968245872.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100161233 + ... + 100229199.

It is an arithmetic number, because the mean of its divisors is an integer number (182993644800).

Almost surely, 2^{6809968245872} 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 6809968245872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7319745792000).

6809968245872 is an abundant number, since it is smaller than the sum of its proper divisors (7829523338128).

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

6809968245872 is a wasteful number, since it uses less digits than its factorization.

6809968245872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77694 (or 77688 counting only the distinct ones).

The product of its (nonzero) digits is 836075520, while the sum is 74.

The spelling of 6809968245872 in words is "six trillion, eight hundred nine billion, nine hundred sixty-eight million, two hundred forty-five thousand, eight hundred seventy-two".