19688886168 has 64 divisors (see below), whose sum is σ = 56931759360. Its totient is φ = 5557616256.

The previous prime is 19688886149. The next prime is 19688886169. The reversal of 19688886168 is 86168888691.

It is a super-3 number, since 3×19688886168³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19688886169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692055 + ... + 719942.

It is an arithmetic number, because the mean of its divisors is an integer number (889558740).

Almost surely, 2^19688886168 is an apocalyptic number.

It is an amenable number.

19688886168 is an abundant number, since it is smaller than the sum of its proper divisors (37242873192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19688886168 is a wasteful number, since it uses less digits than its factorization.

19688886168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412096 (or 1412092 counting only the distinct ones).

The product of its digits is 63700992, while the sum is 69.

The spelling of 19688886168 in words is "nineteen billion, six hundred eighty-eight million, eight hundred eighty-six thousand, one hundred sixty-eight".