18104820280 has 64 divisors (see below), whose sum is σ = 41107783680. Its totient is φ = 7175952000.

The previous prime is 18104820247. The next prime is 18104820343. The reversal of 18104820280 is 8202840181.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5337385 + ... + 5340775.

It is an arithmetic number, because the mean of its divisors is an integer number (642309120).

Almost surely, 2^18104820280 is an apocalyptic number.

18104820280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18104820280 is an abundant number, since it is smaller than the sum of its proper divisors (23002963400).

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

18104820280 is a wasteful number, since it uses less digits than its factorization.

18104820280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4580 (or 4576 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 34.

The spelling of 18104820280 in words is "eighteen billion, one hundred four million, eight hundred twenty thousand, two hundred eighty".