13668143768 has 8 divisors (see below), whose sum is σ = 25627769580. Its totient is φ = 6834071880.

The previous prime is 13668143747. The next prime is 13668143893. The reversal of 13668143768 is 86734186631.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 854258978 + ... + 854258993.

Almost surely, 2^13668143768 is an apocalyptic number.

It is an amenable number.

13668143768 is a deficient number, since it is larger than the sum of its proper divisors (11959625812).

13668143768 is a wasteful number, since it uses less digits than its factorization.

13668143768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708517977 (or 1708517973 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 53.

The spelling of 13668143768 in words is "thirteen billion, six hundred sixty-eight million, one hundred forty-three thousand, seven hundred sixty-eight".