12719685889 has 8 divisors (see below), whose sum is σ = 13573951488. Its totient is φ = 11877203520.

The previous prime is 12719685887. The next prime is 12719685893. The reversal of 12719685889 is 98858691721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12719685889 - 2¹ = 12719685887 is a prime.

It is a super-2 number, since 2×12719685889² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12719685889.

It is not an unprimeable number, because it can be changed into a prime (12719685887) 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 7 ways as a sum of consecutive naturals, for example, 2943577 + ... + 2947894.

It is an arithmetic number, because the mean of its divisors is an integer number (1696743936).

Almost surely, 2^12719685889 is an apocalyptic number.

It is an amenable number.

12719685889 is a deficient number, since it is larger than the sum of its proper divisors (854265599).

12719685889 is a wasteful number, since it uses less digits than its factorization.

12719685889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5891615.

The product of its digits is 17418240, while the sum is 64.

The spelling of 12719685889 in words is "twelve billion, seven hundred nineteen million, six hundred eighty-five thousand, eight hundred eighty-nine".