68811298920 has 384 divisors, whose sum is σ = 284128266240. Its totient is φ = 14049884160.

The previous prime is 68811298873. The next prime is 68811298937. The reversal of 68811298920 is 2989211886.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 981682 + ... + 1049438.

It is an arithmetic number, because the mean of its divisors is an integer number (739917360).

Almost surely, 2^68811298920 is an apocalyptic number.

68811298920 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 68811298920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142064133120).

68811298920 is an abundant number, since it is smaller than the sum of its proper divisors (215316967320).

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

68811298920 is a wasteful number, since it uses less digits than its factorization.

68811298920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67825 (or 67818 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The spelling of 68811298920 in words is "sixty-eight billion, eight hundred eleven million, two hundred ninety-eight thousand, nine hundred twenty".