18334175989 has 8 divisors (see below), whose sum is σ = 19428660000. Its totient is φ = 17252644752.

The previous prime is 18334175957. The next prime is 18334176011. The reversal of 18334175989 is 98957143381.

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 18334175989 - 2⁵ = 18334175957 is a prime.

It is a super-2 number, since 2×18334175989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18334175089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3235279 + ... + 3240940.

It is an arithmetic number, because the mean of its divisors is an integer number (2428582500).

Almost surely, 2^18334175989 is an apocalyptic number.

18334175989 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

18334175989 is a deficient number, since it is larger than the sum of its proper divisors (1094484011).

18334175989 is a wasteful number, since it uses less digits than its factorization.

18334175989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476387.

The product of its digits is 6531840, while the sum is 58.

The spelling of 18334175989 in words is "eighteen billion, three hundred thirty-four million, one hundred seventy-five thousand, nine hundred eighty-nine".