68943812211456 has 864 divisors, whose sum is σ = 243796804005888. Its totient is φ = 17107127009280.

The previous prime is 68943812211437. The next prime is 68943812211481. The reversal of 68943812211456 is 65411221834986.

It is a self number, because there is not a number n which added to its sum of digits gives 68943812211456.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 686319825 + ... + 686420271.

Almost surely, 2^{68943812211456} 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 68943812211456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121898402002944).

68943812211456 is an abundant number, since it is smaller than the sum of its proper divisors (174852991794432).

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

68943812211456 is a wasteful number, since it uses less digits than its factorization.

68943812211456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100577 (or 100556 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 60.

The spelling of 68943812211456 in words is "sixty-eight trillion, nine hundred forty-three billion, eight hundred twelve million, two hundred eleven thousand, four hundred fifty-six".