18673334431004 has 48 divisors (see below), whose sum is σ = 38440613836800. Its totient is φ = 7845023203200.

The previous prime is 18673334430991. The next prime is 18673334431009. The reversal of 18673334431004 is 40013443337681.

It is a self number, because there is not a number n which added to its sum of digits gives 18673334431004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18673334431009) 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, 272362364 + ... + 272430915.

It is an arithmetic number, because the mean of its divisors is an integer number (800846121600).

Almost surely, 2^{18673334431004} is an apocalyptic number.

It is an amenable number.

18673334431004 is an abundant number, since it is smaller than the sum of its proper divisors (19767279405796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18673334431004 is a wasteful number, since it uses less digits than its factorization.

18673334431004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544793354 (or 544793352 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 47.

Adding to 18673334431004 its reverse (40013443337681), we get a palindrome (58686777768685).

The spelling of 18673334431004 in words is "eighteen trillion, six hundred seventy-three billion, three hundred thirty-four million, four hundred thirty-one thousand, four".