18365496428 has 12 divisors (see below), whose sum is σ = 32143191192. Its totient is φ = 9181727520.

The previous prime is 18365496367. The next prime is 18365496497. The reversal of 18365496428 is 82469456381.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 213950 + ... + 287237.

It is an arithmetic number, because the mean of its divisors is an integer number (2678599266).

Almost surely, 2^18365496428 is an apocalyptic number.

It is an amenable number.

18365496428 is a deficient number, since it is larger than the sum of its proper divisors (13777694764).

18365496428 is a wasteful number, since it uses less digits than its factorization.

18365496428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510352 (or 510350 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 56.

It can be divided in two parts, 183654 and 96428, that added together give a palindrome (280082).

The spelling of 18365496428 in words is "eighteen billion, three hundred sixty-five million, four hundred ninety-six thousand, four hundred twenty-eight".