78468186 has 8 divisors (see below), whose sum is σ = 156936384. Its totient is φ = 26156060.

The previous prime is 78468179. The next prime is 78468191. The reversal of 78468186 is 68186487.

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

78468186 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6539010 + ... + 6539021.

It is an arithmetic number, because the mean of its divisors is an integer number (19617048).

Almost surely, 2^78468186 is an apocalyptic number.

78468186 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

78468186 is a wasteful number, since it uses less digits than its factorization.

78468186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13078036.

The product of its digits is 516096, while the sum is 48.

The square root of 78468186 is about 8858.2270235076. The cubic root of 78468186 is about 428.1190347864.

The spelling of 78468186 in words is "seventy-eight million, four hundred sixty-eight thousand, one hundred eighty-six".