68508443512320 has 1280 divisors, whose sum is σ = 272346088734720. Its totient is φ = 14336704512000.

The previous prime is 68508443512279. The next prime is 68508443512321. The reversal of 68508443512320 is 2321534480586.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68508443512321) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 41195695809 + ... + 41195697471.

It is an arithmetic number, because the mean of its divisors is an integer number (212770381824).

Almost surely, 2^{68508443512320} is an apocalyptic number.

68508443512320 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 68508443512320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136173044367360).

68508443512320 is an abundant number, since it is smaller than the sum of its proper divisors (203837645222400).

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

68508443512320 is a wasteful number, since it uses less digits than its factorization.

68508443512320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047 (or 3031 counting only the distinct ones).

The product of its (nonzero) digits is 5529600, while the sum is 51.

The spelling of 68508443512320 in words is "sixty-eight trillion, five hundred eight billion, four hundred forty-three million, five hundred twelve thousand, three hundred twenty".