18354489192 has 160 divisors (see below), whose sum is σ = 56033318880. Its totient is φ = 5579280000.

The previous prime is 18354489191. The next prime is 18354489203. The reversal of 18354489192 is 29198445381.

It is a happy number.

18354489192 is a `hidden beast` number, since 1 + 8 + 3 + 5 + 448 + 9 + 192 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (18354489191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 686067 + ... + 712317.

It is an arithmetic number, because the mean of its divisors is an integer number (350208243).

Almost surely, 2^18354489192 is an apocalyptic number.

18354489192 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 18354489192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28016659440).

18354489192 is an abundant number, since it is smaller than the sum of its proper divisors (37678829688).

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

18354489192 is a wasteful number, since it uses less digits than its factorization.

18354489192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26365 (or 26352 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 18354489192 in words is "eighteen billion, three hundred fifty-four million, four hundred eighty-nine thousand, one hundred ninety-two".