17427872471 has 4 divisors (see below), whose sum is σ = 17723260200. Its totient is φ = 17132484744.

The previous prime is 17427872453. The next prime is 17427872519.

It is a happy number.

17427872471 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 17427872471 - 2¹⁴ = 17427856087 is a prime.

It is a super-3 number, since 3×17427872471³ (a number of 32 digits) contains 333 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 (17427872411) 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 3 ways as a sum of consecutive naturals, for example, 147693776 + ... + 147693893.

It is an arithmetic number, because the mean of its divisors is an integer number (4430815050).

Almost surely, 2^17427872471 is an apocalyptic number.

17427872471 is a deficient number, since it is larger than the sum of its proper divisors (295387729).

17427872471 is an equidigital number, since it uses as much as digits as its factorization.

17427872471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295387728.

The product of its digits is 1229312, while the sum is 50.

The spelling of 17427872471 in words is "seventeen billion, four hundred twenty-seven million, eight hundred seventy-two thousand, four hundred seventy-one".