68078078 has 8 divisors (see below), whose sum is σ = 102636072. Its totient is φ = 33866056.

The previous prime is 68078069. The next prime is 68078089. The reversal of 68078078 is 87087086.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86000 + ... + 86787.

It is an arithmetic number, because the mean of its divisors is an integer number (12829509).

Almost surely, 2^68078078 is an apocalyptic number.

68078078 is a deficient number, since it is larger than the sum of its proper divisors (34557994).

68078078 is a wasteful number, since it uses less digits than its factorization.

68078078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172986.

The product of its (nonzero) digits is 150528, while the sum is 44.

The square root of 68078078 is about 8250.9440671962. The cubic root of 68078078 is about 408.3216697858.

The spelling of 68078078 in words is "sixty-eight million, seventy-eight thousand, seventy-eight".