18475728201 has 48 divisors (see below), whose sum is σ = 30806141184. Its totient is φ = 10451976192.

The previous prime is 18475728149. The next prime is 18475728203. The reversal of 18475728201 is 10282757481.

18475728201 is a `hidden beast` number, since 18 + 47 + 572 + 8 + 20 + 1 = 666.

It is not a de Polignac number, because 18475728201 - 2¹¹ = 18475726153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18475728203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2700481 + ... + 2707313.

It is an arithmetic number, because the mean of its divisors is an integer number (641794608).

Almost surely, 2^18475728201 is an apocalyptic number.

It is an amenable number.

18475728201 is a deficient number, since it is larger than the sum of its proper divisors (12330412983).

18475728201 is a wasteful number, since it uses less digits than its factorization.

18475728201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270 (or 7267 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The spelling of 18475728201 in words is "eighteen billion, four hundred seventy-five million, seven hundred twenty-eight thousand, two hundred one".