80378138 has 8 divisors (see below), whose sum is σ = 120896832. Its totient is φ = 40079196.

The previous prime is 80378117. The next prime is 80378141. The reversal of 80378138 is 83187308.

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

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, 54020 + ... + 55487.

It is an arithmetic number, because the mean of its divisors is an integer number (15112104).

Almost surely, 2^80378138 is an apocalyptic number.

80378138 is a deficient number, since it is larger than the sum of its proper divisors (40518694).

80378138 is a wasteful number, since it uses less digits than its factorization.

80378138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109876.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 80378138 is about 8965.3855466455. The cubic root of 80378138 is about 431.5647658443.

The spelling of 80378138 in words is "eighty million, three hundred seventy-eight thousand, one hundred thirty-eight".