18343473169 has 8 divisors (see below), whose sum is σ = 21070387008. Its totient is φ = 15643163760.

The previous prime is 18343473139. The next prime is 18343473179. The reversal of 18343473169 is 96137434381.

It is a happy number.

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

It is not a de Polignac number, because 18343473169 - 2¹³ = 18343464977 is a prime.

It is a super-2 number, since 2×18343473169² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18343473119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6649627 + ... + 6652384.

It is an arithmetic number, because the mean of its divisors is an integer number (2633798376).

Almost surely, 2^18343473169 is an apocalyptic number.

It is an amenable number.

18343473169 is a deficient number, since it is larger than the sum of its proper divisors (2726913839).

18343473169 is a wasteful number, since it uses less digits than its factorization.

18343473169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13302215.

The product of its digits is 1306368, while the sum is 49.

The spelling of 18343473169 in words is "eighteen billion, three hundred forty-three million, four hundred seventy-three thousand, one hundred sixty-nine".