68338568 has 8 divisors (see below), whose sum is σ = 128134830. Its totient is φ = 34169280.

The previous prime is 68338553. The next prime is 68338597. The reversal of 68338568 is 86583386.

It can be written as a sum of positive squares in only one way, i.e., 65642404 + 2696164 = 8102^2 + 1642^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4271153 + ... + 4271168.

Almost surely, 2^68338568 is an apocalyptic number.

It is an amenable number.

68338568 is a deficient number, since it is larger than the sum of its proper divisors (59796262).

68338568 is a wasteful number, since it uses less digits than its factorization.

68338568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8542327 (or 8542323 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 68338568 is about 8266.7144622274. The cubic root of 68338568 is about 408.8417997171.

The spelling of 68338568 in words is "sixty-eight million, three hundred thirty-eight thousand, five hundred sixty-eight".