17420063509 has 8 divisors (see below), whose sum is σ = 17538732800. Its totient is φ = 17301438000.

The previous prime is 17420063501. The next prime is 17420063519. The reversal of 17420063509 is 90536002471.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 17420063509 - 2³ = 17420063501 is a prime.

It is a super-2 number, since 2×17420063509² (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 (17420063501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382779 + ... + 1395319.

It is an arithmetic number, because the mean of its divisors is an integer number (2192341600).

Almost surely, 2^17420063509 is an apocalyptic number.

It is an amenable number.

17420063509 is a deficient number, since it is larger than the sum of its proper divisors (118669291).

17420063509 is a wasteful number, since it uses less digits than its factorization.

17420063509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21891.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 17420063509 in words is "seventeen billion, four hundred twenty million, sixty-three thousand, five hundred nine".