18074724192 has 144 divisors (see below), whose sum is σ = 59292559872. Its totient is φ = 5115882240.

The previous prime is 18074724191. The next prime is 18074724197. The reversal of 18074724192 is 29142747081.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18074724191) 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, 173817 + ... + 257607.

It is an arithmetic number, because the mean of its divisors is an integer number (411753888).

Almost surely, 2^18074724192 is an apocalyptic number.

18074724192 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 18074724192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29646279936).

18074724192 is an abundant number, since it is smaller than the sum of its proper divisors (41217835680).

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

18074724192 is a wasteful number, since it uses less digits than its factorization.

18074724192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83921 (or 83910 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 18074724192 in words is "eighteen billion, seventy-four million, seven hundred twenty-four thousand, one hundred ninety-two".