17113087489 has 3 divisors (see below), whose sum is σ = 17113218307. Its totient is φ = 17112956672.

The previous prime is 17113087469. The next prime is 17113087499. The reversal of 17113087489 is 98478031171.

The square root of 17113087489 is 130817.

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

17113087489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 16115033025 + 998054464 = 126945^2 + 31592^2 .

It is not a de Polignac number, because 17113087489 - 2¹³ = 17113079297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17113087429) 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 2 ways as a sum of consecutive naturals, for example, 65409 + ... + 196225.

Almost surely, 2^17113087489 is an apocalyptic number.

17113087489 is the 130817-th square number.

17113087489 is the 65409-th centered octagonal number.

It is an amenable number.

17113087489 is a deficient number, since it is larger than the sum of its proper divisors (130818).

17113087489 is an frugal number, since it uses more digits than its factorization.

17113087489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261634 (or 130817 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 49.

Multiplying 17113087489 by its sum of digits (49), we get a square (838541286961 = 915719²).

The spelling of 17113087489 in words is "seventeen billion, one hundred thirteen million, eighty-seven thousand, four hundred eighty-nine".