18286212020 has 24 divisors (see below), whose sum is σ = 38405671584. Its totient is φ = 7313603616.

The previous prime is 18286212019. The next prime is 18286212037. The reversal of 18286212020 is 2021268281.

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 in 7 ways as a sum of consecutive naturals, for example, 130307 + ... + 231413.

It is an arithmetic number, because the mean of its divisors is an integer number (1600236316).

Almost surely, 2^18286212020 is an apocalyptic number.

18286212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18286212020 is an abundant number, since it is smaller than the sum of its proper divisors (20119459564).

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

18286212020 is a wasteful number, since it uses less digits than its factorization.

18286212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110159 (or 110157 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The spelling of 18286212020 in words is "eighteen billion, two hundred eighty-six million, two hundred twelve thousand, twenty".