18574766312 has 8 divisors (see below), whose sum is σ = 34827686850. Its totient is φ = 9287383152.

The previous prime is 18574766299. The next prime is 18574766323. The reversal of 18574766312 is 21366747581.

It can be written as a sum of positive squares in only one way, i.e., 18050997316 + 523768996 = 134354^2 + 22886^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160922887 + ... + 1160922902.

Almost surely, 2^18574766312 is an apocalyptic number.

It is an amenable number.

18574766312 is a deficient number, since it is larger than the sum of its proper divisors (16252920538).

18574766312 is a wasteful number, since it uses less digits than its factorization.

18574766312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2321845795 (or 2321845791 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 50.

The spelling of 18574766312 in words is "eighteen billion, five hundred seventy-four million, seven hundred sixty-six thousand, three hundred twelve".