18104604469 has 16 divisors (see below), whose sum is σ = 21393202176. Its totient is φ = 14993193600.

The previous prime is 18104604457. The next prime is 18104604481. The reversal of 18104604469 is 96440640181.

It is an interprime number because it is at equal distance from previous prime (18104604457) and next prime (18104604481).

It is not a de Polignac number, because 18104604469 - 2⁷ = 18104604341 is a prime.

It is a super-2 number, since 2×18104604469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18104694469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66279 + ... + 201499.

It is an arithmetic number, because the mean of its divisors is an integer number (1337075136).

Almost surely, 2^18104604469 is an apocalyptic number.

It is an amenable number.

18104604469 is a deficient number, since it is larger than the sum of its proper divisors (3288597707).

18104604469 is a wasteful number, since it uses less digits than its factorization.

18104604469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135876.

The product of its (nonzero) digits is 165888, while the sum is 43.

The spelling of 18104604469 in words is "eighteen billion, one hundred four million, six hundred four thousand, four hundred sixty-nine".