68651023072 has 48 divisors (see below), whose sum is σ = 139405894992. Its totient is φ = 33254323200.

The previous prime is 68651023037. The next prime is 68651023073. The reversal of 68651023072 is 27032015686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68651023073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151447 + ... + 400297.

It is an arithmetic number, because the mean of its divisors is an integer number (2904289479).

Almost surely, 2^68651023072 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 68651023072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69702947496).

68651023072 is an abundant number, since it is smaller than the sum of its proper divisors (70754871920).

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

68651023072 is a wasteful number, since it uses less digits than its factorization.

68651023072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249131 (or 249123 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 68651023072 in words is "sixty-eight billion, six hundred fifty-one million, twenty-three thousand, seventy-two".