18404684085 has 8 divisors (see below), whose sum is σ = 29447494560. Its totient is φ = 9815831504.

The previous prime is 18404684057. The next prime is 18404684093. The reversal of 18404684085 is 58048640481.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18404684085 - 2⁹ = 18404683573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 613489455 + ... + 613489484.

It is an arithmetic number, because the mean of its divisors is an integer number (3680936820).

Almost surely, 2^18404684085 is an apocalyptic number.

18404684085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18404684085 is a deficient number, since it is larger than the sum of its proper divisors (11042810475).

18404684085 is a wasteful number, since it uses less digits than its factorization.

18404684085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226978947.

The product of its (nonzero) digits is 983040, while the sum is 48.

The spelling of 18404684085 in words is "eighteen billion, four hundred four million, six hundred eighty-four thousand, eighty-five".