68368578 has 16 divisors (see below), whose sum is σ = 141148416. Its totient is φ = 22054320.

The previous prime is 68368549. The next prime is 68368589. The reversal of 68368578 is 87586386.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68368578.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183601 + ... + 183972.

It is an arithmetic number, because the mean of its divisors is an integer number (8821776).

Almost surely, 2^68368578 is an apocalyptic number.

68368578 is an abundant number, since it is smaller than the sum of its proper divisors (72779838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68368578 is a wasteful number, since it uses less digits than its factorization.

68368578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367609.

The product of its digits is 1935360, while the sum is 51.

The square root of 68368578 is about 8268.5293734739. The cubic root of 68368578 is about 408.9016368253.

The spelling of 68368578 in words is "sixty-eight million, three hundred sixty-eight thousand, five hundred seventy-eight".