17668617473 has 16 divisors (see below), whose sum is σ = 19410935040. Its totient is φ = 15981810624.

The previous prime is 17668617469. The next prime is 17668617481. The reversal of 17668617473 is 37471686671.

It is not a de Polignac number, because 17668617473 - 2² = 17668617469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17668617443) 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 15 ways as a sum of consecutive naturals, for example, 551468 + ... + 582626.

It is an arithmetic number, because the mean of its divisors is an integer number (1213183440).

Almost surely, 2^17668617473 is an apocalyptic number.

17668617473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

17668617473 is a deficient number, since it is larger than the sum of its proper divisors (1742317567).

17668617473 is a wasteful number, since it uses less digits than its factorization.

17668617473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32048.

The product of its digits is 7112448, while the sum is 56.

The spelling of 17668617473 in words is "seventeen billion, six hundred sixty-eight million, six hundred seventeen thousand, four hundred seventy-three".