18366483529 has 9 divisors (see below), whose sum is σ = 18691193287. Its totient is φ = 18047326864.

The previous prime is 18366483523. The next prime is 18366483559. The reversal of 18366483529 is 92538466381.

The square root of 18366483529 is 135523.

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

It can be written as a sum of positive squares in only one way, i.e., 8635055625 + 9731427904 = 92925^2 + 98648^2 .

It is not a de Polignac number, because 18366483529 - 2¹⁵ = 18366450761 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18366483529.

It is not an unprimeable number, because it can be changed into a prime (18366483523) 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, 7994709 + ... + 7997005.

Almost surely, 2^18366483529 is an apocalyptic number.

18366483529 is the 135523-rd square number.

18366483529 is the 67762-nd centered octagonal number.

It is an amenable number.

18366483529 is a deficient number, since it is larger than the sum of its proper divisors (324709758).

18366483529 is an frugal number, since it uses more digits than its factorization.

18366483529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4712 (or 2356 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 55.

The spelling of 18366483529 in words is "eighteen billion, three hundred sixty-six million, four hundred eighty-three thousand, five hundred twenty-nine".