18245820284 has 24 divisors (see below), whose sum is σ = 32019283968. Its totient is φ = 9097490160.

The previous prime is 18245820233. The next prime is 18245820311. The reversal of 18245820284 is 48202854281.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2402357 + ... + 2409939.

It is an arithmetic number, because the mean of its divisors is an integer number (1334136832).

Almost surely, 2^18245820284 is an apocalyptic number.

It is an amenable number.

18245820284 is a deficient number, since it is larger than the sum of its proper divisors (13773463684).

18245820284 is a wasteful number, since it uses less digits than its factorization.

18245820284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9185 (or 9183 counting only the distinct ones).

The product of its (nonzero) digits is 327680, while the sum is 44.

The spelling of 18245820284 in words is "eighteen billion, two hundred forty-five million, eight hundred twenty thousand, two hundred eighty-four".