18344536132 has 12 divisors (see below), whose sum is σ = 34572395116. Its totient is φ = 8466708960.

The previous prime is 18344536127. The next prime is 18344536183. The reversal of 18344536132 is 23163544381.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 778744836 + 17565791296 = 27906^2 + 132536^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176389719 + ... + 176389822.

Almost surely, 2^18344536132 is an apocalyptic number.

It is an amenable number.

18344536132 is a deficient number, since it is larger than the sum of its proper divisors (16227858984).

18344536132 is a wasteful number, since it uses less digits than its factorization.

18344536132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352779558 (or 352779556 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The spelling of 18344536132 in words is "eighteen billion, three hundred forty-four million, five hundred thirty-six thousand, one hundred thirty-two".