18298942533 has 6 divisors (see below), whose sum is σ = 26431805894. Its totient is φ = 12199295016.

The previous prime is 18298942523. The next prime is 18298942537. The reversal of 18298942533 is 33524989281.

18298942533 is a `hidden beast` number, since 1 + 8 + 29 + 89 + 4 + 2 + 533 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11245966209 + 7052976324 = 106047^2 + 83982^2 .

It is not a de Polignac number, because 18298942533 - 2²¹ = 18296845381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 18298942533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18298942537) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1016607910 + ... + 1016607927.

Almost surely, 2^18298942533 is an apocalyptic number.

It is an amenable number.

18298942533 is a deficient number, since it is larger than the sum of its proper divisors (8132863361).

18298942533 is a wasteful number, since it uses less digits than its factorization.

18298942533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033215843 (or 2033215840 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

It can be divided in two parts, 182989 and 42533, that added together give a palindrome (225522).

The spelling of 18298942533 in words is "eighteen billion, two hundred ninety-eight million, nine hundred forty-two thousand, five hundred thirty-three".