68012328320 has 64 divisors (see below), whose sum is σ = 163490549040. Its totient is φ = 27054581760.

The previous prime is 68012328311. The next prime is 68012328323. The reversal of 68012328320 is 2382321086.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68012328323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177722 + ... + 409401.

Almost surely, 2^68012328320 is an apocalyptic number.

It is an amenable number.

68012328320 is an abundant number, since it is smaller than the sum of its proper divisors (95478220720).

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

68012328320 is a wasteful number, since it uses less digits than its factorization.

68012328320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587323 (or 587311 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 68012328320 in words is "sixty-eight billion, twelve million, three hundred twenty-eight thousand, three hundred twenty".