17420497895471 has 64 divisors (see below), whose sum is σ = 20516317839360. Its totient is φ = 14633971271040.

The previous prime is 17420497895459. The next prime is 17420497895513. The reversal of 17420497895471 is 17459879402471.

It is not a de Polignac number, because 17420497895471 - 2⁶ = 17420497895407 is a prime.

It is a super-3 number, since 3×17420497895471³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17420497895431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 285912416 + ... + 285973338.

It is an arithmetic number, because the mean of its divisors is an integer number (320567466240).

Almost surely, 2^{17420497895471} is an apocalyptic number.

17420497895471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

17420497895471 is a deficient number, since it is larger than the sum of its proper divisors (3095819943889).

17420497895471 is a wasteful number, since it uses less digits than its factorization.

17420497895471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61316.

The product of its (nonzero) digits is 142248960, while the sum is 68.

The spelling of 17420497895471 in words is "seventeen trillion, four hundred twenty billion, four hundred ninety-seven million, eight hundred ninety-five thousand, four hundred seventy-one".