68843547344 has 160 divisors (see below), whose sum is σ = 168403971456. Its totient is φ = 26779484160.

The previous prime is 68843547337. The next prime is 68843547359. The reversal of 68843547344 is 44374534886.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 68843547344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2592824 + ... + 2619240.

Almost surely, 2^68843547344 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 68843547344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84201985728).

68843547344 is an abundant number, since it is smaller than the sum of its proper divisors (99560424112).

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

68843547344 is a wasteful number, since it uses less digits than its factorization.

68843547344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26533 (or 26527 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 56.

The spelling of 68843547344 in words is "sixty-eight billion, eight hundred forty-three million, five hundred forty-seven thousand, three hundred forty-four".