18479426112 has 168 divisors, whose sum is σ = 61123876736. Its totient is φ = 5228457984.

The previous prime is 18479426111. The next prime is 18479426159. The reversal of 18479426112 is 21162497481.

It is a tau number, because it is divible by the number of its divisors (168).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (18479426111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 393048 + ... + 437544.

Almost surely, 2^18479426112 is an apocalyptic number.

18479426112 is a gapful number since it is divisible by the number (12) 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 18479426112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30561938368).

18479426112 is an abundant number, since it is smaller than the sum of its proper divisors (42644450624).

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

18479426112 is a wasteful number, since it uses less digits than its factorization.

18479426112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44625 (or 44612 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 18479426112 in words is "eighteen billion, four hundred seventy-nine million, four hundred twenty-six thousand, one hundred twelve".