68353589240 has 32 divisors (see below), whose sum is σ = 155288746080. Its totient is φ = 27075983232.

The previous prime is 68353589203. The next prime is 68353589257. The reversal of 68353589240 is 4298535386.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8291219 + ... + 8299458.

It is an arithmetic number, because the mean of its divisors is an integer number (4852773315).

Almost surely, 2^68353589240 is an apocalyptic number.

It is an amenable number.

68353589240 is an abundant number, since it is smaller than the sum of its proper divisors (86935156840).

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

68353589240 is a wasteful number, since it uses less digits than its factorization.

68353589240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16590791 (or 16590787 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 68353589240 in words is "sixty-eight billion, three hundred fifty-three million, five hundred eighty-nine thousand, two hundred forty".