68680881420 has 24 divisors (see below), whose sum is σ = 192306468144. Its totient is φ = 18314901696.

The previous prime is 68680881413. The next prime is 68680881439. The reversal of 68680881420 is 2418808686.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572340619 + ... + 572340738.

It is an arithmetic number, because the mean of its divisors is an integer number (8012769506).

Almost surely, 2^68680881420 is an apocalyptic number.

68680881420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68680881420 is an abundant number, since it is smaller than the sum of its proper divisors (123625586724).

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

68680881420 is a wasteful number, since it uses less digits than its factorization.

68680881420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144681369 (or 1144681367 counting only the distinct ones).

The product of its (nonzero) digits is 1179648, while the sum is 51.

The spelling of 68680881420 in words is "sixty-eight billion, six hundred eighty million, eight hundred eighty-one thousand, four hundred twenty".