18338233832 has 8 divisors (see below), whose sum is σ = 34384188450. Its totient is φ = 9169116912.

The previous prime is 18338233787. The next prime is 18338233843. The reversal of 18338233832 is 23833283381.

It can be written as a sum of positive squares in only one way, i.e., 18217980676 + 120253156 = 134974^2 + 10966^2 .

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, 1146139607 + ... + 1146139622.

Almost surely, 2^18338233832 is an apocalyptic number.

It is an amenable number.

18338233832 is a deficient number, since it is larger than the sum of its proper divisors (16045954618).

18338233832 is a wasteful number, since it uses less digits than its factorization.

18338233832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292279235 (or 2292279231 counting only the distinct ones).

The product of its digits is 497664, while the sum is 44.

Multiplying 18338233832 by its sum of digits (44), we get a palindrome (806882288608).

The spelling of 18338233832 in words is "eighteen billion, three hundred thirty-eight million, two hundred thirty-three thousand, eight hundred thirty-two".