80711678 has 8 divisors (see below), whose sum is σ = 121206672. Its totient is φ = 40309456.

The previous prime is 80711641. The next prime is 80711681. The reversal of 80711678 is 87611708.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20975 + ... + 24522.

It is an arithmetic number, because the mean of its divisors is an integer number (15150834).

Almost surely, 2^80711678 is an apocalyptic number.

80711678 is a deficient number, since it is larger than the sum of its proper divisors (40494994).

80711678 is a wasteful number, since it uses less digits than its factorization.

80711678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46386.

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 80711678 is about 8983.9678316432. The cubic root of 80711678 is about 432.1608875763.

The spelling of 80711678 in words is "eighty million, seven hundred eleven thousand, six hundred seventy-eight".