68718258 has 96 divisors (see below), whose sum is σ = 178793472. Its totient is φ = 18662400.

The previous prime is 68718253. The next prime is 68718271. The reversal of 68718258 is 85281786.

It is not an unprimeable number, because it can be changed into a prime (68718253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 285018 + ... + 285258.

It is an arithmetic number, because the mean of its divisors is an integer number (1862432).

Almost surely, 2^68718258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68718258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89396736).

68718258 is an abundant number, since it is smaller than the sum of its proper divisors (110075214).

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

68718258 is a wasteful number, since it uses less digits than its factorization.

68718258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360 (or 357 counting only the distinct ones).

The product of its digits is 215040, while the sum is 45.

The square root of 68718258 is about 8289.6476402800. The cubic root of 68718258 is about 409.5975785748.

It can be divided in two parts, 6871 and 8258, that added together give a square (15129 = 123²).

The spelling of 68718258 in words is "sixty-eight million, seven hundred eighteen thousand, two hundred fifty-eight".