68142562208 has 192 divisors, whose sum is σ = 165775196160. Its totient is φ = 26930534400.

The previous prime is 68142562193. The next prime is 68142562247. The reversal of 68142562208 is 80226524186.

It is a super-2 number, since 2×68142562208² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52864028 + ... + 52865316.

It is an arithmetic number, because the mean of its divisors is an integer number (863412480).

Almost surely, 2^68142562208 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 68142562208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82887598080).

68142562208 is an abundant number, since it is smaller than the sum of its proper divisors (97632633952).

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

68142562208 is a wasteful number, since it uses less digits than its factorization.

68142562208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1691 (or 1683 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 68142562208 in words is "sixty-eight billion, one hundred forty-two million, five hundred sixty-two thousand, two hundred eight".