68720525288 has 64 divisors (see below), whose sum is σ = 137495232000. Its totient is φ = 32106117312.

The previous prime is 68720525287. The next prime is 68720525347. The reversal of 68720525288 is 88252502786.

It is not an unprimeable number, because it can be changed into a prime (68720525287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8158343 + ... + 8166761.

It is an arithmetic number, because the mean of its divisors is an integer number (2148363000).

Almost surely, 2^68720525288 is an apocalyptic number.

It is an amenable number.

68720525288 is an abundant number, since it is smaller than the sum of its proper divisors (68774706712).

68720525288 is a wasteful number, since it uses less digits than its factorization.

68720525288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9174 (or 9170 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 53.

The spelling of 68720525288 in words is "sixty-eight billion, seven hundred twenty million, five hundred twenty-five thousand, two hundred eighty-eight".