68068762128 has 100 divisors (see below), whose sum is σ = 199224687420. Its totient is φ = 22434610176.

The previous prime is 68068762121. The next prime is 68068762133. The reversal of 68068762128 is 82126786086.

68068762128 is a `hidden beast` number, since 6 + 8 + 0 + 6 + 8 + 7 + 621 + 2 + 8 = 666.

68068762128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8984764944 + 59083997184 = 94788^2 + 243072^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (68068762121) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 179725 + ... + 410412.

Almost surely, 2^68068762128 is an apocalyptic number.

It is an amenable number.

68068762128 is an abundant number, since it is smaller than the sum of its proper divisors (131155925292).

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

68068762128 is a wasteful number, since it uses less digits than its factorization.

68068762128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590246 (or 590231 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 68068762128 in words is "sixty-eight billion, sixty-eight million, seven hundred sixty-two thousand, one hundred twenty-eight".