13686905668 has 12 divisors (see below), whose sum is σ = 24358052880. Its totient is φ = 6727461992.

The previous prime is 13686905621. The next prime is 13686905723. The reversal of 13686905668 is 86650968631.

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 in 3 ways as a sum of consecutive naturals, for example, 28997446 + ... + 28997917.

It is an arithmetic number, because the mean of its divisors is an integer number (2029837740).

Almost surely, 2^13686905668 is an apocalyptic number.

It is an amenable number.

13686905668 is a deficient number, since it is larger than the sum of its proper divisors (10671147212).

13686905668 is a wasteful number, since it uses less digits than its factorization.

13686905668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57995426 (or 57995424 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 13686905668 in words is "thirteen billion, six hundred eighty-six million, nine hundred five thousand, six hundred sixty-eight".