1804504605408 has 192 divisors, whose sum is σ = 5295438167040. Its totient is φ = 597818188800.

The previous prime is 1804504605403. The next prime is 1804504605503. The reversal of 1804504605408 is 8045064054081.

It is a happy number.

1804504605408 is a `hidden beast` number, since 1 + 8 + 0 + 45 + 0 + 4 + 60 + 540 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804504605401) 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 31 ways as a sum of consecutive naturals, for example, 138726841 + ... + 138739847.

It is an arithmetic number, because the mean of its divisors is an integer number (27580407120).

Almost surely, 2^{1804504605408} is an apocalyptic number.

1804504605408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1804504605408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2647719083520).

1804504605408 is an abundant number, since it is smaller than the sum of its proper divisors (3490933561632).

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

1804504605408 is a wasteful number, since it uses less digits than its factorization.

1804504605408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13998 (or 13984 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 45.

Adding to 1804504605408 its reverse (8045064054081), we get a palindrome (9849568659489).

The spelling of 1804504605408 in words is "one trillion, eight hundred four billion, five hundred four million, six hundred five thousand, four hundred eight".