18548728206 has 32 divisors (see below), whose sum is σ = 37440503808. Its totient is φ = 6125868000.

The previous prime is 18548728183. The next prime is 18548728213. The reversal of 18548728206 is 60282784581.

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, 556056 + ... + 588468.

It is an arithmetic number, because the mean of its divisors is an integer number (1170015744).

Almost surely, 2^18548728206 is an apocalyptic number.

18548728206 is an abundant number, since it is smaller than the sum of its proper divisors (18891775602).

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

18548728206 is a wasteful number, since it uses less digits than its factorization.

18548728206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33296.

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 18548728206 in words is "eighteen billion, five hundred forty-eight million, seven hundred twenty-eight thousand, two hundred six".