68715568 has 10 divisors (see below), whose sum is σ = 133136444. Its totient is φ = 34357776.

The previous prime is 68715553. The next prime is 68715601. The reversal of 68715568 is 86551786.

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, 2147346 + ... + 2147377.

Almost surely, 2^68715568 is an apocalyptic number.

It is an amenable number.

68715568 is a deficient number, since it is larger than the sum of its proper divisors (64420876).

68715568 is a wasteful number, since it uses less digits than its factorization.

68715568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4294731 (or 4294725 counting only the distinct ones).

The product of its digits is 403200, while the sum is 46.

The square root of 68715568 is about 8289.4853881287. The cubic root of 68715568 is about 409.5922338921.

The spelling of 68715568 in words is "sixty-eight million, seven hundred fifteen thousand, five hundred sixty-eight".