18436412104 has 64 divisors (see below), whose sum is σ = 38371294080. Its totient is φ = 8233728000.

The previous prime is 18436412077. The next prime is 18436412107. The reversal of 18436412104 is 40121463481.

It is a self number, because there is not a number n which added to its sum of digits gives 18436412104.

It is not an unprimeable number, because it can be changed into a prime (18436412107) 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, 8109912 + ... + 8112184.

It is an arithmetic number, because the mean of its divisors is an integer number (599551470).

Almost surely, 2^18436412104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18436412104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19185647040).

18436412104 is an abundant number, since it is smaller than the sum of its proper divisors (19934881976).

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

18436412104 is a wasteful number, since it uses less digits than its factorization.

18436412104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3862 (or 3858 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

Adding to 18436412104 its reverse (40121463481), we get a palindrome (58557875585).

The spelling of 18436412104 in words is "eighteen billion, four hundred thirty-six million, four hundred twelve thousand, one hundred four".