18169314319 has 16 divisors (see below), whose sum is σ = 20601962080. Its totient is φ = 15884968320.

The previous prime is 18169314307. The next prime is 18169314323. The reversal of 18169314319 is 91341396181.

It is not a de Polignac number, because 18169314319 - 2²³ = 18160925711 is a prime.

It is a super-2 number, since 2×18169314319² (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 (18169314389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1431469 + ... + 1444105.

It is an arithmetic number, because the mean of its divisors is an integer number (1287622630).

Almost surely, 2^18169314319 is an apocalyptic number.

18169314319 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

18169314319 is a deficient number, since it is larger than the sum of its proper divisors (2432647761).

18169314319 is a wasteful number, since it uses less digits than its factorization.

18169314319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18490.

The product of its digits is 139968, while the sum is 46.

The spelling of 18169314319 in words is "eighteen billion, one hundred sixty-nine million, three hundred fourteen thousand, three hundred nineteen".