18049351304 has 16 divisors (see below), whose sum is σ = 33844237020. Its totient is φ = 9024221440.

The previous prime is 18049351277. The next prime is 18049351337. The reversal of 18049351304 is 40315394081.

It can be written as a sum of positive squares in 2 ways, for example, as 16538474404 + 1510876900 = 128602^2 + 38870^2 .

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 in 3 ways as a sum of consecutive naturals, for example, 161444 + ... + 249324.

Almost surely, 2^18049351304 is an apocalyptic number.

It is an amenable number.

18049351304 is a deficient number, since it is larger than the sum of its proper divisors (15794885716).

18049351304 is a wasteful number, since it uses less digits than its factorization.

18049351304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113560 (or 113556 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 18049351304 in words is "eighteen billion, forty-nine million, three hundred fifty-one thousand, three hundred four".