18532449824 has 192 divisors, whose sum is σ = 46373160960. Its totient is φ = 7107471360.

The previous prime is 18532449799. The next prime is 18532449839. The reversal of 18532449824 is 42894423581.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8123564 + ... + 8125844.

It is an arithmetic number, because the mean of its divisors is an integer number (241526880).

Almost surely, 2^18532449824 is an apocalyptic number.

18532449824 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 18532449824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23186580480).

18532449824 is an abundant number, since it is smaller than the sum of its proper divisors (27840711136).

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

18532449824 is a wasteful number, since it uses less digits than its factorization.

18532449824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2423 (or 2415 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 50.

The spelling of 18532449824 in words is "eighteen billion, five hundred thirty-two million, four hundred forty-nine thousand, eight hundred twenty-four".