68203303808 has 64 divisors (see below), whose sum is σ = 137146996800. Its totient is φ = 33783601152.

The previous prime is 68203303801. The next prime is 68203303843. The reversal of 68203303808 is 80830330286.

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 (68203303801) 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, 6020966 + ... + 6032282.

It is an arithmetic number, because the mean of its divisors is an integer number (2142921825).

Almost surely, 2^68203303808 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 68203303808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68573498400).

68203303808 is an abundant number, since it is smaller than the sum of its proper divisors (68943692992).

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

68203303808 is a wasteful number, since it uses less digits than its factorization.

68203303808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11767 (or 11755 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 68203303808 in words is "sixty-eight billion, two hundred three million, three hundred three thousand, eight hundred eight".