68043138800 has 240 divisors, whose sum is σ = 202272387072. Its totient is φ = 21419596800.

The previous prime is 68043138781. The next prime is 68043138851. The reversal of 68043138800 is 883134086.

It is a happy number.

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, 6947507 + ... + 6957293.

Almost surely, 2^68043138800 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 68043138800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101136193536).

68043138800 is an abundant number, since it is smaller than the sum of its proper divisors (134229248272).

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

68043138800 is a wasteful number, since it uses less digits than its factorization.

68043138800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10016 (or 10005 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 68043138800 in words is "sixty-eight billion, forty-three million, one hundred thirty-eight thousand, eight hundred".