13968644368 has 40 divisors (see below), whose sum is σ = 31997148480. Its totient is φ = 5780127360.

The previous prime is 13968644351. The next prime is 13968644377. The reversal of 13968644368 is 86344686931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2147098 + ... + 2153593.

It is an arithmetic number, because the mean of its divisors is an integer number (799928712).

Almost surely, 2^13968644368 is an apocalyptic number.

It is an amenable number.

13968644368 is an abundant number, since it is smaller than the sum of its proper divisors (18028504112).

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

13968644368 is a wasteful number, since it uses less digits than its factorization.

13968644368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4300735 (or 4300729 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 58.

The spelling of 13968644368 in words is "thirteen billion, nine hundred sixty-eight million, six hundred forty-four thousand, three hundred sixty-eight".