68659703678 has 8 divisors (see below), whose sum is σ = 104400371568. Its totient is φ = 33859579824.

The previous prime is 68659703663. The next prime is 68659703689. The reversal of 68659703678 is 87630795686.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235135826 + ... + 235136117.

It is an arithmetic number, because the mean of its divisors is an integer number (13050046446).

Almost surely, 2^68659703678 is an apocalyptic number.

68659703678 is a deficient number, since it is larger than the sum of its proper divisors (35740667890).

68659703678 is a wasteful number, since it uses less digits than its factorization.

68659703678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470272018.

The product of its (nonzero) digits is 91445760, while the sum is 65.

The spelling of 68659703678 in words is "sixty-eight billion, six hundred fifty-nine million, seven hundred three thousand, six hundred seventy-eight".