68338325056 has 63 divisors (see below), whose sum is σ = 139171687747. Its totient is φ = 33293941760.

The previous prime is 68338325053. The next prime is 68338325057. The reversal of 68338325056 is 65052383386.

The square root of 68338325056 is 261416.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 20471886400 + 47866438656 = 143080^2 + 218784^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68338325053) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 85744050 + ... + 85744846.

Almost surely, 2^68338325056 is an apocalyptic number.

68338325056 is the 261416-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68338325056

68338325056 is an abundant number, since it is smaller than the sum of its proper divisors (70833362691).

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

68338325056 is an frugal number, since it uses more digits than its factorization.

68338325056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1688 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 49.

Multiplying 68338325056 by its sum of digits (49), we get a square (3348577927744 = 1829912²).

The spelling of 68338325056 in words is "sixty-eight billion, three hundred thirty-eight million, three hundred twenty-five thousand, fifty-six".