168808419909 has 12 divisors (see below), whose sum is σ = 247268672352. Its totient is φ = 110953890600.

The previous prime is 168808419887. The next prime is 168808419911. The reversal of 168808419909 is 909914808861.

It is not a de Polignac number, because 168808419909 - 2²⁵ = 168774865477 is a prime.

It is a super-3 number, since 3×168808419909³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168808419709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132087327 + ... + 132088604.

It is an arithmetic number, because the mean of its divisors is an integer number (20605722696).

Almost surely, 2^168808419909 is an apocalyptic number.

It is an amenable number.

168808419909 is a deficient number, since it is larger than the sum of its proper divisors (78460252443).

168808419909 is a wasteful number, since it uses less digits than its factorization.

168808419909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264176008 (or 264176005 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 63.

The spelling of 168808419909 in words is "one hundred sixty-eight billion, eight hundred eight million, four hundred nineteen thousand, nine hundred nine".