80778046 has 8 divisors (see below), whose sum is σ = 121844520. Its totient is φ = 40163208.

The previous prime is 80778041. The next prime is 80778097. The reversal of 80778046 is 64087708.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80778041) by changing a digit.

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, 112461 + ... + 113176.

It is an arithmetic number, because the mean of its divisors is an integer number (15230565).

Almost surely, 2^80778046 is an apocalyptic number.

80778046 is a deficient number, since it is larger than the sum of its proper divisors (41066474).

80778046 is a wasteful number, since it uses less digits than its factorization.

80778046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225818.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 80778046 is about 8987.6607635135. The cubic root of 80778046 is about 432.2793082584.

The spelling of 80778046 in words is "eighty million, seven hundred seventy-eight thousand, forty-six".