18182065928 has 32 divisors (see below), whose sum is σ = 36720024600. Its totient is φ = 8390297088.

The previous prime is 18182065921. The next prime is 18182065933. The reversal of 18182065928 is 82956028181.

It can be written as a sum of positive squares in 4 ways, for example, as 13270579204 + 4911486724 = 115198^2 + 70082^2 .

It is not an unprimeable number, because it can be changed into a prime (18182065921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 830450 + ... + 852062.

Almost surely, 2^18182065928 is an apocalyptic number.

It is an amenable number.

18182065928 is an abundant number, since it is smaller than the sum of its proper divisors (18537958672).

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

18182065928 is a wasteful number, since it uses less digits than its factorization.

18182065928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29721 (or 29717 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 50.

The spelling of 18182065928 in words is "eighteen billion, one hundred eighty-two million, sixty-five thousand, nine hundred twenty-eight".