18240504306 has 16 divisors (see below), whose sum is σ = 36980749344. Its totient is φ = 5996877984.

The previous prime is 18240504287. The next prime is 18240504319. The reversal of 18240504306 is 60340504281.

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, 20822056 + ... + 20822931.

It is an arithmetic number, because the mean of its divisors is an integer number (2311296834).

Almost surely, 2^18240504306 is an apocalyptic number.

18240504306 is an abundant number, since it is smaller than the sum of its proper divisors (18740245038).

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

18240504306 is a wasteful number, since it uses less digits than its factorization.

18240504306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41645065.

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 18240504306 in words is "eighteen billion, two hundred forty million, five hundred four thousand, three hundred six".