68236542237888 has 448 divisors, whose sum is σ = 211590047370240. Its totient is φ = 21521516544000.

The previous prime is 68236542237887. The next prime is 68236542237931. The reversal of 68236542237888 is 88873224563286.

68236542237888 is a `hidden beast` number, since 6 + 8 + 2 + 3 + 6 + 542 + 2 + 3 + 78 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is not an unprimeable number, because it can be changed into a prime (68236542237887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4764781768 + ... + 4764796088.

It is an arithmetic number, because the mean of its divisors is an integer number (472299212880).

Almost surely, 2^{68236542237888} 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 68236542237888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105795023685120).

68236542237888 is an abundant number, since it is smaller than the sum of its proper divisors (143353505132352).

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

68236542237888 is a wasteful number, since it uses less digits than its factorization.

68236542237888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15653 (or 15637 counting only the distinct ones).

The product of its digits is 1486356480, while the sum is 72.

The spelling of 68236542237888 in words is "sixty-eight trillion, two hundred thirty-six billion, five hundred forty-two million, two hundred thirty-seven thousand, eight hundred eighty-eight".