80859018 has 32 divisors (see below), whose sum is σ = 167832000. Its totient is φ = 25940096.

The previous prime is 80859013. The next prime is 80859019. The reversal of 80859018 is 81095808.

It is not an unprimeable number, because it can be changed into a prime (80859013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76558 + ... + 77606.

It is an arithmetic number, because the mean of its divisors is an integer number (5244750).

Almost surely, 2^80859018 is an apocalyptic number.

80859018 is an abundant number, since it is smaller than the sum of its proper divisors (86972982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80859018 is a wasteful number, since it uses less digits than its factorization.

80859018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526.

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 80859018 is about 8992.1642556172. The cubic root of 80859018 is about 432.4236991041.

The spelling of 80859018 in words is "eighty million, eight hundred fifty-nine thousand, eighteen".