68924925056 has 96 divisors (see below), whose sum is σ = 154584591420. Its totient is φ = 30428006400.

The previous prime is 68924925031. The next prime is 68924925059. The reversal of 68924925056 is 65052942986.

It can be written as a sum of positive squares in 2 ways, for example, as 56777358400 + 12147566656 = 238280^2 + 110216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 68924924992 and 68924925010.

It is not an unprimeable number, because it can be changed into a prime (68924925059) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 841106 + ... + 919406.

Almost surely, 2^68924925056 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 68924925056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77292295710).

68924925056 is an abundant number, since it is smaller than the sum of its proper divisors (85659666364).

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

68924925056 is a wasteful number, since it uses less digits than its factorization.

68924925056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78374 (or 78339 counting only the distinct ones).

The product of its (nonzero) digits is 9331200, while the sum is 56.

The spelling of 68924925056 in words is "sixty-eight billion, nine hundred twenty-four million, nine hundred twenty-five thousand, fifty-six".