68056778 has 8 divisors (see below), whose sum is σ = 102156768. Its totient is φ = 34004524.

The previous prime is 68056771. The next prime is 68056817. The reversal of 68056778 is 87765086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68056771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8126 + ... + 14217.

It is an arithmetic number, because the mean of its divisors is an integer number (12769596).

Almost surely, 2^68056778 is an apocalyptic number.

68056778 is a deficient number, since it is larger than the sum of its proper divisors (34099990).

68056778 is a wasteful number, since it uses less digits than its factorization.

68056778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23868.

The product of its (nonzero) digits is 564480, while the sum is 47.

The square root of 68056778 is about 8249.6532048323. The cubic root of 68056778 is about 408.2790806536.

The spelling of 68056778 in words is "sixty-eight million, fifty-six thousand, seven hundred seventy-eight".