17849494404 has 81 divisors (see below), whose sum is σ = 52502518341. Its totient is φ = 5098252320.

The previous prime is 17849494373. The next prime is 17849494409. The reversal of 17849494404 is 40449494871.

It is a happy number.

The square root of 17849494404 is 133602.

It is a perfect power (a square), and thus also a powerful number.

17849494404 is a `hidden beast` number, since 1 + 78 + 49 + 494 + 40 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1332104004 + 16517390400 = 36498^2 + 128520^2 .

It is not an unprimeable number, because it can be changed into a prime (17849494409) by changing a digit.

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 26 ways as a sum of consecutive naturals, for example, 5609694 + ... + 5612874.

Almost surely, 2^17849494404 is an apocalyptic number.

17849494404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

17849494404 is the 133602-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 17849494404

17849494404 is an abundant number, since it is smaller than the sum of its proper divisors (34653023937).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

17849494404 is an equidigital number, since it uses as much as digits as its factorization.

17849494404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6386 (or 3193 counting only the distinct ones).

The product of its (nonzero) digits is 4644864, while the sum is 54.

The spelling of 17849494404 in words is "seventeen billion, eight hundred forty-nine million, four hundred ninety-four thousand, four hundred four".