68443542008 has 16 divisors (see below), whose sum is σ = 128336818560. Its totient is φ = 34220390400.

The previous prime is 68443541981. The next prime is 68443542043. The reversal of 68443542008 is 80024534486.

It is a self number, because there is not a number n which added to its sum of digits gives 68443542008.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55913 + ... + 374183.

It is an arithmetic number, because the mean of its divisors is an integer number (8021051160).

Almost surely, 2^68443542008 is an apocalyptic number.

It is an amenable number.

68443542008 is a deficient number, since it is larger than the sum of its proper divisors (59893276552).

68443542008 is a wasteful number, since it uses less digits than its factorization.

68443542008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345158 (or 345154 counting only the distinct ones).

The product of its (nonzero) digits is 737280, while the sum is 44.

The spelling of 68443542008 in words is "sixty-eight billion, four hundred forty-three million, five hundred forty-two thousand, eight".