18275986468 has 6 divisors (see below), whose sum is σ = 31982976326. Its totient is φ = 9137993232.

The previous prime is 18275986427. The next prime is 18275986471. The reversal of 18275986468 is 86468957281.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12698585344 + 5577401124 = 112688^2 + 74682^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 2284498305 + ... + 2284498312.

Almost surely, 2^18275986468 is an apocalyptic number.

It is an amenable number.

18275986468 is a deficient number, since it is larger than the sum of its proper divisors (13706989858).

18275986468 is a wasteful number, since it uses less digits than its factorization.

18275986468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4568996621 (or 4568996619 counting only the distinct ones).

The product of its digits is 46448640, while the sum is 64.

The spelling of 18275986468 in words is "eighteen billion, two hundred seventy-five million, nine hundred eighty-six thousand, four hundred sixty-eight".