68530768 has 10 divisors (see below), whose sum is σ = 132778394. Its totient is φ = 34265376.

The previous prime is 68530733. The next prime is 68530783. The reversal of 68530768 is 86703586.

It can be written as a sum of positive squares in only one way, i.e., 68029504 + 501264 = 8248^2 + 708^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2141571 + ... + 2141602.

Almost surely, 2^68530768 is an apocalyptic number.

It is an amenable number.

68530768 is a deficient number, since it is larger than the sum of its proper divisors (64247626).

68530768 is a wasteful number, since it uses less digits than its factorization.

68530768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4283181 (or 4283175 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 68530768 is about 8278.3312328029. The cubic root of 68530768 is about 409.2247257073.

The spelling of 68530768 in words is "sixty-eight million, five hundred thirty thousand, seven hundred sixty-eight".