68535589120 has 36 divisors (see below), whose sum is σ = 164164156380. Its totient is φ = 27414235136.

The previous prime is 68535589117. The next prime is 68535589121. The reversal of 68535589120 is 2198553586.

It can be written as a sum of positive squares in 2 ways, for example, as 8890226944 + 59645362176 = 94288^2 + 244224^2 .

It is not an unprimeable number, because it can be changed into a prime (68535589121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26770435 + ... + 26772994.

It is an arithmetic number, because the mean of its divisors is an integer number (4560115455).

Almost surely, 2^68535589120 is an apocalyptic number.

It is an amenable number.

68535589120 is an abundant number, since it is smaller than the sum of its proper divisors (95628567260).

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

68535589120 is an equidigital number, since it uses as much as digits as its factorization.

68535589120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53543450 (or 53543436 counting only the distinct ones).

The product of its (nonzero) digits is 2592000, while the sum is 52.

The spelling of 68535589120 in words is "sixty-eight billion, five hundred thirty-five million, five hundred eighty-nine thousand, one hundred twenty".