68133339824 has 40 divisors (see below), whose sum is σ = 144082319808. Its totient is φ = 30953954880.

The previous prime is 68133339811. The next prime is 68133339839. The reversal of 68133339824 is 42893333186.

It is a happy 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, 252299 + ... + 447125.

Almost surely, 2^68133339824 is an apocalyptic number.

It is an amenable number.

68133339824 is an abundant number, since it is smaller than the sum of its proper divisors (75948979984).

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

68133339824 is a wasteful number, since it uses less digits than its factorization.

68133339824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196833 (or 196827 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 50.

The spelling of 68133339824 in words is "sixty-eight billion, one hundred thirty-three million, three hundred thirty-nine thousand, eight hundred twenty-four".