13969662668 has 24 divisors (see below), whose sum is σ = 26939711568. Its totient is φ = 6297592896.

The previous prime is 13969662661. The next prime is 13969662683. The reversal of 13969662668 is 86626696931.

It is a self number, because there is not a number n which added to its sum of digits gives 13969662668.

It is not an unprimeable number, because it can be changed into a prime (13969662661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3121571 + ... + 3126042.

It is an arithmetic number, because the mean of its divisors is an integer number (1122487982).

Almost surely, 2^13969662668 is an apocalyptic number.

It is an amenable number.

13969662668 is a deficient number, since it is larger than the sum of its proper divisors (12970048900).

13969662668 is a wasteful number, since it uses less digits than its factorization.

13969662668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247673 (or 6247671 counting only the distinct ones).

The product of its digits is 30233088, while the sum is 62.

The spelling of 13969662668 in words is "thirteen billion, nine hundred sixty-nine million, six hundred sixty-two thousand, six hundred sixty-eight".