18284467542 has 48 divisors (see below), whose sum is σ = 40237515696. Its totient is φ = 5534971200.

The previous prime is 18284467541. The next prime is 18284467547. The reversal of 18284467542 is 24576448281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18284467541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 711192 + ... + 736452.

It is an arithmetic number, because the mean of its divisors is an integer number (838281577).

Almost surely, 2^18284467542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18284467542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20118757848).

18284467542 is an abundant number, since it is smaller than the sum of its proper divisors (21953048154).

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

18284467542 is a wasteful number, since it uses less digits than its factorization.

18284467542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26285 (or 26274 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 51.

The spelling of 18284467542 in words is "eighteen billion, two hundred eighty-four million, four hundred sixty-seven thousand, five hundred forty-two".