68743539784 has 16 divisors (see below), whose sum is σ = 129172533120. Its totient is φ = 34297530960.

The previous prime is 68743539773. The next prime is 68743539803. The reversal of 68743539784 is 48793534786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9275932 + ... + 9283339.

It is an arithmetic number, because the mean of its divisors is an integer number (8073283320).

Almost surely, 2^68743539784 is an apocalyptic number.

It is an amenable number.

68743539784 is a deficient number, since it is larger than the sum of its proper divisors (60428993336).

68743539784 is a wasteful number, since it uses less digits than its factorization.

68743539784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18559740 (or 18559736 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 64.

The spelling of 68743539784 in words is "sixty-eight billion, seven hundred forty-three million, five hundred thirty-nine thousand, seven hundred eighty-four".