18498173284789 has 8 divisors (see below), whose sum is σ = 20179923044832. Its totient is φ = 16816439798640.

The previous prime is 18498173284741. The next prime is 18498173284807. The reversal of 18498173284789 is 98748237189481.

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 18498173284789 - 2¹¹ = 18498173282741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18498173284739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1628134 + ... + 6296599.

It is an arithmetic number, because the mean of its divisors is an integer number (2522490380604).

Almost surely, 2^{18498173284789} is an apocalyptic number.

It is an amenable number.

18498173284789 is a deficient number, since it is larger than the sum of its proper divisors (1681749760043).

18498173284789 is a wasteful number, since it uses less digits than its factorization.

18498173284789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8136947.

The product of its digits is 1560674304, while the sum is 79.

The spelling of 18498173284789 in words is "eighteen trillion, four hundred ninety-eight billion, one hundred seventy-three million, two hundred eighty-four thousand, seven hundred eighty-nine".