18582324489 has 9 divisors (see below), whose sum is σ = 26841726093. Its totient is φ = 12387943692.

The previous prime is 18582324479. The next prime is 18582324491. The reversal of 18582324489 is 98442328581.

The square root of 18582324489 is 136317.

It is a perfect power (a square), and thus also a powerful number.

18582324489 is a `hidden beast` number, since 1 + 85 + 82 + 3 + 2 + 4 + 489 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 18582324489 - 2⁵ = 18582324457 is a prime.

It is a super-2 number, since 2×18582324489² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18582324479) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 386232 + ... + 431670.

Almost surely, 2^18582324489 is an apocalyptic number.

18582324489 is the 136317-th square number.

18582324489 is the 68159-th centered octagonal number.

It is an amenable number.

18582324489 is a deficient number, since it is larger than the sum of its proper divisors (8259401604).

18582324489 is an frugal number, since it uses more digits than its factorization.

18582324489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90884 (or 45442 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 54.

The spelling of 18582324489 in words is "eighteen billion, five hundred eighty-two million, three hundred twenty-four thousand, four hundred eighty-nine".