68081238000 has 240 divisors, whose sum is σ = 243587346912. Its totient is φ = 17712000000.

The previous prime is 68081237999. The next prime is 68081238011. The reversal of 68081238000 is 83218086.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×68081238000² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 691875 + ... + 784125.

Almost surely, 2^68081238000 is an apocalyptic number.

68081238000 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 68081238000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121793673456).

68081238000 is an abundant number, since it is smaller than the sum of its proper divisors (175506108912).

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

68081238000 is a wasteful number, since it uses less digits than its factorization.

68081238000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92321 (or 92302 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 68081238000 in words is "sixty-eight billion, eighty-one million, two hundred thirty-eight thousand".