17484900649 has 4 divisors (see below), whose sum is σ = 17485396164. Its totient is φ = 17484405136.

The previous prime is 17484900647. The next prime is 17484900659. The reversal of 17484900649 is 94600948471.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6329316249 + 11155584400 = 79557^2 + 105620^2 .

It is a cyclic number.

It is not a de Polignac number, because 17484900649 - 2¹ = 17484900647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 17484900596 and 17484900605.

It is not an unprimeable number, because it can be changed into a prime (17484900647) 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, 190402 + ... + 266875.

It is an arithmetic number, because the mean of its divisors is an integer number (4371349041).

Almost surely, 2^17484900649 is an apocalyptic number.

It is an amenable number.

17484900649 is a deficient number, since it is larger than the sum of its proper divisors (495515).

17484900649 is an equidigital number, since it uses as much as digits as its factorization.

17484900649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495514.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 17484900649 in words is "seventeen billion, four hundred eighty-four million, nine hundred thousand, six hundred forty-nine".