68752281220 has 72 divisors (see below), whose sum is σ = 168149580480. Its totient is φ = 23544480960.

The previous prime is 68752281211. The next prime is 68752281259. The reversal of 68752281220 is 2218225786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 800985 + ... + 882655.

It is an arithmetic number, because the mean of its divisors is an integer number (2335410840).

Almost surely, 2^68752281220 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 68752281220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84074790240).

68752281220 is an abundant number, since it is smaller than the sum of its proper divisors (99397299260).

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

68752281220 is a wasteful number, since it uses less digits than its factorization.

68752281220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82553 (or 82544 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 68752281220 in words is "sixty-eight billion, seven hundred fifty-two million, two hundred eighty-one thousand, two hundred twenty".