18573319046 has 8 divisors (see below), whose sum is σ = 28385638704. Its totient is φ = 9111439480.

The previous prime is 18573319001. The next prime is 18573319049. The reversal of 18573319046 is 64091337581.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18573319049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87609890 + ... + 87610101.

It is an arithmetic number, because the mean of its divisors is an integer number (3548204838).

Almost surely, 2^18573319046 is an apocalyptic number.

18573319046 is a deficient number, since it is larger than the sum of its proper divisors (9812319658).

18573319046 is a wasteful number, since it uses less digits than its factorization.

18573319046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175220046.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 18573319046 in words is "eighteen billion, five hundred seventy-three million, three hundred nineteen thousand, forty-six".