17172831268 has 6 divisors (see below), whose sum is σ = 30052454726. Its totient is φ = 8586415632.

The previous prime is 17172831241. The next prime is 17172831293. The reversal of 17172831268 is 86213827171.

It can be written as a sum of positive squares in only one way, i.e., 12972754404 + 4200076864 = 113898^2 + 64808^2 .

It is a super-2 number, since 2×17172831268² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2146603905 + ... + 2146603912.

Almost surely, 2^17172831268 is an apocalyptic number.

It is an amenable number.

17172831268 is a deficient number, since it is larger than the sum of its proper divisors (12879623458).

17172831268 is a wasteful number, since it uses less digits than its factorization.

17172831268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4293207821 (or 4293207819 counting only the distinct ones).

The product of its digits is 225792, while the sum is 46.

The spelling of 17172831268 in words is "seventeen billion, one hundred seventy-two million, eight hundred thirty-one thousand, two hundred sixty-eight".