68733338920 has 32 divisors (see below), whose sum is σ = 161373928320. Its totient is φ = 26297972800.

The previous prime is 68733338893. The next prime is 68733338929. The reversal of 68733338920 is 2983333786.

It is not an unprimeable number, because it can be changed into a prime (68733338929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37354156 + ... + 37355995.

It is an arithmetic number, because the mean of its divisors is an integer number (5042935260).

Almost surely, 2^68733338920 is an apocalyptic number.

It is an amenable number.

68733338920 is an abundant number, since it is smaller than the sum of its proper divisors (92640589400).

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

68733338920 is a wasteful number, since it uses less digits than its factorization.

68733338920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74710185 (or 74710181 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 68733338920 in words is "sixty-eight billion, seven hundred thirty-three million, three hundred thirty-eight thousand, nine hundred twenty".