68558018 has 8 divisors (see below), whose sum is σ = 104372112. Its totient is φ = 33767316.

The previous prime is 68558011. The next prime is 68558041. The reversal of 68558018 is 81085586.

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 (68558011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255680 + ... + 255947.

It is an arithmetic number, because the mean of its divisors is an integer number (13046514).

Almost surely, 2^68558018 is an apocalyptic number.

68558018 is a deficient number, since it is larger than the sum of its proper divisors (35814094).

68558018 is a wasteful number, since it uses less digits than its factorization.

68558018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511696.

The product of its (nonzero) digits is 76800, while the sum is 41.

The square root of 68558018 is about 8279.9769323350. The cubic root of 68558018 is about 409.2789587493.

The spelling of 68558018 in words is "sixty-eight million, five hundred fifty-eight thousand, eighteen".