18404684046 has 24 divisors (see below), whose sum is σ = 45573503664. Its totient is φ = 5258481120.

The previous prime is 18404684027. The next prime is 18404684047. The reversal of 18404684046 is 64048640481.

18404684046 is a `hidden beast` number, since 184 + 0 + 4 + 68 + 404 + 6 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18404683992 and 18404684010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18404684047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73034335 + ... + 73034586.

It is an arithmetic number, because the mean of its divisors is an integer number (1898895986).

Almost surely, 2^18404684046 is an apocalyptic number.

18404684046 is an abundant number, since it is smaller than the sum of its proper divisors (27168819618).

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

18404684046 is a wasteful number, since it uses less digits than its factorization.

18404684046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146068936 (or 146068933 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 45.

The spelling of 18404684046 in words is "eighteen billion, four hundred four million, six hundred eighty-four thousand, forty-six".