80585421018 has 16 divisors (see below), whose sum is σ = 162159622176. Its totient is φ = 26697010320.

The previous prime is 80585420983. The next prime is 80585421019. The reversal of 80585421018 is 81012458508.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80585421019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41198113 + ... + 41200068.

It is an arithmetic number, because the mean of its divisors is an integer number (10134976386).

Almost surely, 2^80585421018 is an apocalyptic number.

80585421018 is an abundant number, since it is smaller than the sum of its proper divisors (81574201158).

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

80585421018 is a wasteful number, since it uses less digits than its factorization.

80585421018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82398349.

The product of its (nonzero) digits is 102400, while the sum is 42.

The spelling of 80585421018 in words is "eighty billion, five hundred eighty-five million, four hundred twenty-one thousand, eighteen".