68532471912 has 32 divisors (see below), whose sum is σ = 171338227200. Its totient is φ = 22843217664.

The previous prime is 68532471911. The next prime is 68532471929. The reversal of 68532471912 is 21917423586.

It is not an unprimeable number, because it can be changed into a prime (68532471911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783264 + ... + 866352.

It is an arithmetic number, because the mean of its divisors is an integer number (5354319600).

Almost surely, 2^68532471912 is an apocalyptic number.

It is an amenable number.

68532471912 is an abundant number, since it is smaller than the sum of its proper divisors (102805755288).

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

68532471912 is a wasteful number, since it uses less digits than its factorization.

68532471912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117465 (or 117461 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 68532471912 in words is "sixty-eight billion, five hundred thirty-two million, four hundred seventy-one thousand, nine hundred twelve".