68494158 has 12 divisors (see below), whose sum is σ = 148404048. Its totient is φ = 22831380.

The previous prime is 68494157. The next prime is 68494163. The reversal of 68494158 is 85149486.

68494158 is a `hidden beast` number, since 6 + 8 + 494 + 158 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68494157) 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 5 ways as a sum of consecutive naturals, for example, 1902598 + ... + 1902633.

It is an arithmetic number, because the mean of its divisors is an integer number (12367004).

Almost surely, 2^68494158 is an apocalyptic number.

68494158 is an abundant number, since it is smaller than the sum of its proper divisors (79909890).

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

68494158 is a wasteful number, since it uses less digits than its factorization.

68494158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3805239 (or 3805236 counting only the distinct ones).

The product of its digits is 276480, while the sum is 45.

The square root of 68494158 is about 8276.1197429713. The cubic root of 68494158 is about 409.1518417252.

The spelling of 68494158 in words is "sixty-eight million, four hundred ninety-four thousand, one hundred fifty-eight".