80063357278 has 4 divisors (see below), whose sum is σ = 120095035920. Its totient is φ = 40031678638.

The previous prime is 80063357243. The next prime is 80063357317. The reversal of 80063357278 is 87275336008.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 20015839318 + ... + 20015839321.

It is an arithmetic number, because the mean of its divisors is an integer number (30023758980).

Almost surely, 2^80063357278 is an apocalyptic number.

80063357278 is a deficient number, since it is larger than the sum of its proper divisors (40031678642).

80063357278 is a wasteful number, since it uses less digits than its factorization.

80063357278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40031678641.

The product of its (nonzero) digits is 1693440, while the sum is 49.

The spelling of 80063357278 in words is "eighty billion, sixty-three million, three hundred fifty-seven thousand, two hundred seventy-eight".