13968866643 has 8 divisors (see below), whose sum is σ = 18626212800. Its totient is φ = 9312049128.

The previous prime is 13968866617. The next prime is 13968866647. The reversal of 13968866643 is 34666886931.

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

It is not a de Polignac number, because 13968866643 - 2⁶ = 13968866579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13968866647) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65733 + ... + 179606.

It is an arithmetic number, because the mean of its divisors is an integer number (2328276600).

Almost surely, 2^13968866643 is an apocalyptic number.

13968866643 is a deficient number, since it is larger than the sum of its proper divisors (4657346157).

13968866643 is a wasteful number, since it uses less digits than its factorization.

13968866643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264321.

The product of its digits is 26873856, while the sum is 60.

The spelling of 13968866643 in words is "thirteen billion, nine hundred sixty-eight million, eight hundred sixty-six thousand, six hundred forty-three".