13968513473 has 2 divisors, whose sum is σ = 13968513474. Its totient is φ = 13968513472.

The previous prime is 13968513463. The next prime is 13968513521. The reversal of 13968513473 is 37431586931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10694041744 + 3274471729 = 103412^2 + 57223^2 .

It is a cyclic number.

It is not a de Polignac number, because 13968513473 - 2¹⁴ = 13968497089 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13968513463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6984256736 + 6984256737.

It is an arithmetic number, because the mean of its divisors is an integer number (6984256737).

Almost surely, 2^13968513473 is an apocalyptic number.

It is an amenable number.

13968513473 is a deficient number, since it is larger than the sum of its proper divisors (1).

13968513473 is an equidigital number, since it uses as much as digits as its factorization.

13968513473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1632960, while the sum is 50.

The spelling of 13968513473 in words is "thirteen billion, nine hundred sixty-eight million, five hundred thirteen thousand, four hundred seventy-three".