68308794180 has 192 divisors, whose sum is σ = 232802760960. Its totient is φ = 16490649600.

The previous prime is 68308794161. The next prime is 68308794209. The reversal of 68308794180 is 8149780386.

It is a super-3 number, since 3×68308794180³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1407682 + ... + 1455398.

It is an arithmetic number, because the mean of its divisors is an integer number (1212514380).

Almost surely, 2^68308794180 is an apocalyptic number.

68308794180 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 68308794180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116401380480).

68308794180 is an abundant number, since it is smaller than the sum of its proper divisors (164493966780).

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

68308794180 is a wasteful number, since it uses less digits than its factorization.

68308794180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47987 (or 47979 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 54.

The spelling of 68308794180 in words is "sixty-eight billion, three hundred eight million, seven hundred ninety-four thousand, one hundred eighty".