68222397888 has 84 divisors (see below), whose sum is σ = 196014578760. Its totient is φ = 22686445056.

The previous prime is 68222397877. The next prime is 68222397913. The reversal of 68222397888 is 88879322286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100006 + ... + 382682.

It is an arithmetic number, because the mean of its divisors is an integer number (2333506890).

Almost surely, 2^68222397888 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 68222397888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98007289380).

68222397888 is an abundant number, since it is smaller than the sum of its proper divisors (127792180872).

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

68222397888 is a wasteful number, since it uses less digits than its factorization.

68222397888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283114 (or 283101 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 63.

The spelling of 68222397888 in words is "sixty-eight billion, two hundred twenty-two million, three hundred ninety-seven thousand, eight hundred eighty-eight".