68317121250 has 400 divisors, whose sum is σ = 224044482816. Its totient is φ = 15228000000.

The previous prime is 68317121207. The next prime is 68317121261. The reversal of 68317121250 is 5212171386.

It is an unprimeable number.

It is a polite number, since it can be written in 199 ways as a sum of consecutive naturals, for example, 29057575 + ... + 29059925.

Almost surely, 2^68317121250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68317121250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112022241408).

68317121250 is an abundant number, since it is smaller than the sum of its proper divisors (155727361566).

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

68317121250 is a wasteful number, since it uses less digits than its factorization.

68317121250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2433 (or 2409 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 68317121250 in words is "sixty-eight billion, three hundred seventeen million, one hundred twenty-one thousand, two hundred fifty".