68168258 has 8 divisors (see below), whose sum is σ = 102307728. Its totient is φ = 34065684.

The previous prime is 68168239. The next prime is 68168311. The reversal of 68168258 is 85286186.

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

It is a super-2 number, since 2×68168258² = 9293822797509128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4016 + ... + 12347.

It is an arithmetic number, because the mean of its divisors is an integer number (12788466).

Almost surely, 2^68168258 is an apocalyptic number.

68168258 is a deficient number, since it is larger than the sum of its proper divisors (34139470).

68168258 is a wasteful number, since it uses less digits than its factorization.

68168258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18448.

The product of its digits is 184320, while the sum is 44.

The square root of 68168258 is about 8256.4070878318. The cubic root of 68168258 is about 408.5018854156.

The spelling of 68168258 in words is "sixty-eight million, one hundred sixty-eight thousand, two hundred fifty-eight".