18775574764 has 6 divisors (see below), whose sum is σ = 32857255844. Its totient is φ = 9387787380.

The previous prime is 18775574749. The next prime is 18775574773. The reversal of 18775574764 is 46747557781.

It is a happy number.

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 as a sum of consecutive naturals, namely, 2346946842 + ... + 2346946849.

Almost surely, 2^18775574764 is an apocalyptic number.

It is an amenable number.

18775574764 is a deficient number, since it is larger than the sum of its proper divisors (14081681080).

18775574764 is a wasteful number, since it uses less digits than its factorization.

18775574764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4693893695 (or 4693893693 counting only the distinct ones).

The product of its digits is 46099200, while the sum is 61.

The spelling of 18775574764 in words is "eighteen billion, seven hundred seventy-five million, five hundred seventy-four thousand, seven hundred sixty-four".