80543418 has 8 divisors (see below), whose sum is σ = 161086848. Its totient is φ = 26847804.

The previous prime is 80543417. The next prime is 80543443. The reversal of 80543418 is 81434508.

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

80543418 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (80543417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6711946 + ... + 6711957.

It is an arithmetic number, because the mean of its divisors is an integer number (20135856).

Almost surely, 2^80543418 is an apocalyptic number.

80543418 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.

80543418 is a wasteful number, since it uses less digits than its factorization.

80543418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13423908.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 80543418 is about 8974.5984868405. The cubic root of 80543418 is about 431.8603693969.

The spelling of 80543418 in words is "eighty million, five hundred forty-three thousand, four hundred eighteen".