68320120824 has 192 divisors, whose sum is σ = 196562995200. Its totient is φ = 21408820992.

The previous prime is 68320120819. The next prime is 68320120853. The reversal of 68320120824 is 42802102386.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9887979 + ... + 9894885.

It is an arithmetic number, because the mean of its divisors is an integer number (1023765600).

Almost surely, 2^68320120824 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 68320120824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98281497600).

68320120824 is an abundant number, since it is smaller than the sum of its proper divisors (128242874376).

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

68320120824 is a wasteful number, since it uses less digits than its factorization.

68320120824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7082 (or 7075 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 68320120824 in words is "sixty-eight billion, three hundred twenty million, one hundred twenty thousand, eight hundred twenty-four".