319987060889 has 4 divisors (see below), whose sum is σ = 321950171856. Its totient is φ = 318023949924.

The previous prime is 319987060873. The next prime is 319987060919. The reversal of 319987060889 is 988060789913.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988060789913 = 159457 ⋅6196409.

It is a cyclic number.

It is not a de Polignac number, because 319987060889 - 2⁴ = 319987060873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (319987060829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981555239 + ... + 981555564.

It is an arithmetic number, because the mean of its divisors is an integer number (80487542964).

Almost surely, 2^319987060889 is an apocalyptic number.

It is an amenable number.

319987060889 is a deficient number, since it is larger than the sum of its proper divisors (1963110967).

319987060889 is a wasteful number, since it uses less digits than its factorization.

319987060889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963110966.

The product of its (nonzero) digits is 47029248, while the sum is 68.

The spelling of 319987060889 in words is "three hundred nineteen billion, nine hundred eighty-seven million, sixty thousand, eight hundred eighty-nine".