319934385688 has 8 divisors (see below), whose sum is σ = 599876973180. Its totient is φ = 159967192840.

The previous prime is 319934385647. The next prime is 319934385691. The reversal of 319934385688 is 886583439913.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×319934385688² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 19995899098 + ... + 19995899113.

Almost surely, 2^319934385688 is an apocalyptic number.

It is an amenable number.

319934385688 is a deficient number, since it is larger than the sum of its proper divisors (279942587492).

319934385688 is a wasteful number, since it uses less digits than its factorization.

319934385688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39991798217 (or 39991798213 counting only the distinct ones).

The product of its digits is 134369280, while the sum is 67.

The spelling of 319934385688 in words is "three hundred nineteen billion, nine hundred thirty-four million, three hundred eighty-five thousand, six hundred eighty-eight".