17190785109 has 16 divisors (see below), whose sum is σ = 23080373120. Its totient is φ = 11380910400.

The previous prime is 17190785083. The next prime is 17190785113. The reversal of 17190785109 is 90158709171.

It is not a de Polignac number, because 17190785109 - 2¹⁶ = 17190719573 is a prime.

It is a super-2 number, since 2×17190785109² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17190785159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2513907 + ... + 2520735.

It is an arithmetic number, because the mean of its divisors is an integer number (1442523320).

Almost surely, 2^17190785109 is an apocalyptic number.

It is an amenable number.

17190785109 is a deficient number, since it is larger than the sum of its proper divisors (5889588011).

17190785109 is a wasteful number, since it uses less digits than its factorization.

17190785109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12540.

The product of its (nonzero) digits is 158760, while the sum is 48.

The spelling of 17190785109 in words is "seventeen billion, one hundred ninety million, seven hundred eighty-five thousand, one hundred nine".