18204549841 has 16 divisors (see below), whose sum is σ = 20121091200. Its totient is φ = 16382539008.

The previous prime is 18204549829. The next prime is 18204549899. The reversal of 18204549841 is 14894540281.

It is a cyclic number.

It is not a de Polignac number, because 18204549841 - 2²⁹ = 17667678929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18204549791 and 18204549800.

It is not an unprimeable number, because it can be changed into a prime (18204541841) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1255330 + ... + 1269748.

It is an arithmetic number, because the mean of its divisors is an integer number (1257568200).

Almost surely, 2^18204549841 is an apocalyptic number.

It is an amenable number.

18204549841 is a deficient number, since it is larger than the sum of its proper divisors (1916541359).

18204549841 is a wasteful number, since it uses less digits than its factorization.

18204549841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17688.

The product of its (nonzero) digits is 368640, while the sum is 46.

The spelling of 18204549841 in words is "eighteen billion, two hundred four million, five hundred forty-nine thousand, eight hundred forty-one".