18604912144 has 80 divisors (see below), whose sum is σ = 44900376192. Its totient is φ = 7271460864.

The previous prime is 18604912141. The next prime is 18604912153. The reversal of 18604912144 is 44121940681.

It is a happy number.

It is a super-3 number, since 3×18604912144³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 18604912097 and 18604912106.

It is not an unprimeable number, because it can be changed into a prime (18604912141) 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, 43872 + ... + 197824.

Almost surely, 2^18604912144 is an apocalyptic number.

18604912144 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 18604912144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22450188096).

18604912144 is an abundant number, since it is smaller than the sum of its proper divisors (26295464048).

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

18604912144 is a wasteful number, since it uses less digits than its factorization.

18604912144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154064 (or 154058 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The spelling of 18604912144 in words is "eighteen billion, six hundred four million, nine hundred twelve thousand, one hundred forty-four".