18285432932 has 18 divisors (see below), whose sum is σ = 34650355698. Its totient is φ = 8439430272.

The previous prime is 18285432889. The next prime is 18285432937. The reversal of 18285432932 is 23923458281.

It can be written as a sum of positive squares in 3 ways, for example, as 10719076 + 18274713856 = 3274^2 + 135184^2 .

It is not an unprimeable number, because it can be changed into a prime (18285432937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13524053 + ... + 13525404.

It is an arithmetic number, because the mean of its divisors is an integer number (1925019761).

Almost surely, 2^18285432932 is an apocalyptic number.

It is an amenable number.

18285432932 is a deficient number, since it is larger than the sum of its proper divisors (16364922766).

18285432932 is a wasteful number, since it uses less digits than its factorization.

18285432932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27049487 (or 27049472 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The spelling of 18285432932 in words is "eighteen billion, two hundred eighty-five million, four hundred thirty-two thousand, nine hundred thirty-two".