18323262508 has 24 divisors (see below), whose sum is σ = 32808806352. Its totient is φ = 8951664384.

The previous prime is 18323262497. The next prime is 18323262509. The reversal of 18323262508 is 80526232381.

It is not an unprimeable number, because it can be changed into a prime (18323262509) 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 7 ways as a sum of consecutive naturals, for example, 261985 + ... + 324472.

It is an arithmetic number, because the mean of its divisors is an integer number (1367033598).

Almost surely, 2^18323262508 is an apocalyptic number.

It is an amenable number.

18323262508 is a deficient number, since it is larger than the sum of its proper divisors (14485543844).

18323262508 is a wasteful number, since it uses less digits than its factorization.

18323262508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586641 (or 586639 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

Adding to 18323262508 its reverse (80526232381), we get a palindrome (98849494889).

The spelling of 18323262508 in words is "eighteen billion, three hundred twenty-three million, two hundred sixty-two thousand, five hundred eight".