18461183104 has 128 divisors (see below), whose sum is σ = 47648361600. Its totient is φ = 6918856704.

The previous prime is 18461183089. The next prime is 18461183159. The reversal of 18461183104 is 40138116481.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 179604 + ... + 263020.

It is an arithmetic number, because the mean of its divisors is an integer number (372252825).

Almost surely, 2^18461183104 is an apocalyptic number.

18461183104 is a gapful number since it is divisible by the number (14) 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 18461183104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23824180800).

18461183104 is an abundant number, since it is smaller than the sum of its proper divisors (29187178496).

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

18461183104 is a wasteful number, since it uses less digits than its factorization.

18461183104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83470 (or 83458 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 37.

Adding to 18461183104 its reverse (40138116481), we get a palindrome (58599299585).

The spelling of 18461183104 in words is "eighteen billion, four hundred sixty-one million, one hundred eighty-three thousand, one hundred four".