68443112720 has 80 divisors (see below), whose sum is σ = 160792125312. Its totient is φ = 27091722240.

The previous prime is 68443112693. The next prime is 68443112761. The reversal of 68443112720 is 2721134486.

68443112720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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, 17409155 + ... + 17413085.

Almost surely, 2^68443112720 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 68443112720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80396062656).

68443112720 is an abundant number, since it is smaller than the sum of its proper divisors (92349012592).

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

68443112720 is a wasteful number, since it uses less digits than its factorization.

68443112720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6160 (or 6154 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The spelling of 68443112720 in words is "sixty-eight billion, four hundred forty-three million, one hundred twelve thousand, seven hundred twenty".