68371933812 has 384 divisors, whose sum is σ = 211461734400. Its totient is φ = 17059714560.

The previous prime is 68371933807. The next prime is 68371933813. The reversal of 68371933812 is 21833917386.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68371933813) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 77960718 + ... + 77961594.

It is an arithmetic number, because the mean of its divisors is an integer number (550681600).

Almost surely, 2^68371933812 is an apocalyptic number.

68371933812 is a gapful number since it is divisible by the number (62) 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 68371933812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105730867200).

68371933812 is an abundant number, since it is smaller than the sum of its proper divisors (143089800588).

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

68371933812 is a wasteful number, since it uses less digits than its factorization.

68371933812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 980 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The spelling of 68371933812 in words is "sixty-eight billion, three hundred seventy-one million, nine hundred thirty-three thousand, eight hundred twelve".