68071568 has 10 divisors (see below), whose sum is σ = 131888694. Its totient is φ = 34035776.

The previous prime is 68071489. The next prime is 68071583. The reversal of 68071568 is 86517086.

It can be written as a sum of positive squares in only one way, i.e., 59474944 + 8596624 = 7712^2 + 2932^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2127221 + ... + 2127252.

Almost surely, 2^68071568 is an apocalyptic number.

It is an amenable number.

68071568 is a deficient number, since it is larger than the sum of its proper divisors (63817126).

68071568 is a wasteful number, since it uses less digits than its factorization.

68071568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254481 (or 4254475 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 68071568 is about 8250.5495574537. The cubic root of 68071568 is about 408.3086540501.

The spelling of 68071568 in words is "sixty-eight million, seventy-one thousand, five hundred sixty-eight".