2068868680728 has 32 divisors (see below), whose sum is σ = 5177668221360. Its totient is φ = 688890024320.

The previous prime is 2068868680727. The next prime is 2068868680759. The reversal of 2068868680728 is 8270868688602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2068868680727) 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, 45781275 + ... + 45826442.

Almost surely, 2^{2068868680728} is an apocalyptic number.

It is an amenable number.

2068868680728 is an abundant number, since it is smaller than the sum of its proper divisors (3108799540632).

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

2068868680728 is a wasteful number, since it uses less digits than its factorization.

2068868680728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91608667 (or 91608663 counting only the distinct ones).

The product of its (nonzero) digits is 198180864, while the sum is 69.

The spelling of 2068868680728 in words is "two trillion, sixty-eight billion, eight hundred sixty-eight million, six hundred eighty thousand, seven hundred twenty-eight".