80878618 has 8 divisors (see below), whose sum is σ = 121406112. Its totient is φ = 40409916.

The previous prime is 80878613. The next prime is 80878627. The reversal of 80878618 is 81687808.

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

It is not an unprimeable number, because it can be changed into a prime (80878613) 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 3 ways as a sum of consecutive naturals, for example, 11080 + ... + 16867.

It is an arithmetic number, because the mean of its divisors is an integer number (15175764).

Almost surely, 2^80878618 is an apocalyptic number.

80878618 is a deficient number, since it is larger than the sum of its proper divisors (40527494).

80878618 is a wasteful number, since it uses less digits than its factorization.

80878618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29396.

The product of its (nonzero) digits is 172032, while the sum is 46.

The square root of 80878618 is about 8993.2540273251. The cubic root of 80878618 is about 432.4586357135.

The spelling of 80878618 in words is "eighty million, eight hundred seventy-eight thousand, six hundred eighteen".