17021472849 has 6 divisors (see below), whose sum is σ = 24586571906. Its totient is φ = 11347648560.

The previous prime is 17021472847. The next prime is 17021472899. The reversal of 17021472849 is 94827412071.

17021472849 is a `hidden beast` number, since 170 + 2 + 1 + 472 + 8 + 4 + 9 = 666.

17021472849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 16937200449 + 84272400 = 130143^2 + 9180^2 .

It is not a de Polignac number, because 17021472849 - 2¹ = 17021472847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17021472847) 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 5 ways as a sum of consecutive naturals, for example, 945637372 + ... + 945637389.

Almost surely, 2^17021472849 is an apocalyptic number.

It is an amenable number.

17021472849 is a deficient number, since it is larger than the sum of its proper divisors (7565099057).

17021472849 is a wasteful number, since it uses less digits than its factorization.

17021472849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891274767 (or 1891274764 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 17021472849 in words is "seventeen billion, twenty-one million, four hundred seventy-two thousand, eight hundred forty-nine".