68159704 has 8 divisors (see below), whose sum is σ = 127799460. Its totient is φ = 34079848.

The previous prime is 68159659. The next prime is 68159737. The reversal of 68159704 is 40795186.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4259974 + ... + 4259989.

Almost surely, 2^68159704 is an apocalyptic number.

It is an amenable number.

68159704 is a deficient number, since it is larger than the sum of its proper divisors (59639756).

68159704 is a wasteful number, since it uses less digits than its factorization.

68159704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8519969 (or 8519965 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 68159704 is about 8255.8890496421. The cubic root of 68159704 is about 408.4847979353.

The spelling of 68159704 in words is "sixty-eight million, one hundred fifty-nine thousand, seven hundred four".