18508381482 has 16 divisors (see below), whose sum is σ = 37066061952. Its totient is φ = 6161244000.

The previous prime is 18508381477. The next prime is 18508381483. The reversal of 18508381482 is 28418380581.

It is a super-4 number, since 4×18508381482⁴ (a number of 42 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (18508381483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2049243 + ... + 2058254.

It is an arithmetic number, because the mean of its divisors is an integer number (2316628872).

Almost surely, 2^18508381482 is an apocalyptic number.

18508381482 is an abundant number, since it is smaller than the sum of its proper divisors (18557680470).

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

18508381482 is a wasteful number, since it uses less digits than its factorization.

18508381482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4108253.

The product of its (nonzero) digits is 491520, while the sum is 48.

Subtracting 18508381482 from its reverse (28418380581), we obtain a palindrome (9909999099).

The spelling of 18508381482 in words is "eighteen billion, five hundred eight million, three hundred eighty-one thousand, four hundred eighty-two".