18183836548 has 12 divisors (see below), whose sum is σ = 33693579612. Its totient is φ = 8557099520.

The previous prime is 18183836543. The next prime is 18183836557. The reversal of 18183836548 is 84563838181.

It can be written as a sum of positive squares in 2 ways, for example, as 12348098884 + 5835737664 = 111122^2 + 76392^2 .

It is not an unprimeable number, because it can be changed into a prime (18183836543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133704613 + ... + 133704748.

It is an arithmetic number, because the mean of its divisors is an integer number (2807798301).

Almost surely, 2^18183836548 is an apocalyptic number.

It is an amenable number.

18183836548 is a deficient number, since it is larger than the sum of its proper divisors (15509743064).

18183836548 is a wasteful number, since it uses less digits than its factorization.

18183836548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267409382 (or 267409380 counting only the distinct ones).

The product of its digits is 4423680, while the sum is 55.

The spelling of 18183836548 in words is "eighteen billion, one hundred eighty-three million, eight hundred thirty-six thousand, five hundred forty-eight".