18982538352 has 160 divisors (see below), whose sum is σ = 56886984000. Its totient is φ = 6052838400.

The previous prime is 18982538329. The next prime is 18982538417. The reversal of 18982538352 is 25383528981.

18982538352 is a `hidden beast` number, since 18 + 98 + 2 + 538 + 3 + 5 + 2 = 666.

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

It is a congruent number.

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, 1358602 + ... + 1372502.

It is an arithmetic number, because the mean of its divisors is an integer number (355543650).

Almost surely, 2^18982538352 is an apocalyptic number.

18982538352 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 18982538352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28443492000).

18982538352 is an abundant number, since it is smaller than the sum of its proper divisors (37904445648).

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

18982538352 is a wasteful number, since it uses less digits than its factorization.

18982538352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14056 (or 14044 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The spelling of 18982538352 in words is "eighteen billion, nine hundred eighty-two million, five hundred thirty-eight thousand, three hundred fifty-two".