13964656543 has 2 divisors, whose sum is σ = 13964656544. Its totient is φ = 13964656542.

The previous prime is 13964656529. The next prime is 13964656561. The reversal of 13964656543 is 34565646931.

It is a weak prime.

It is an emirp because it is prime and its reverse (34565646931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13964656543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13964656843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6982328271 + 6982328272.

It is an arithmetic number, because the mean of its divisors is an integer number (6982328272).

Almost surely, 2^13964656543 is an apocalyptic number.

13964656543 is a deficient number, since it is larger than the sum of its proper divisors (1).

13964656543 is an equidigital number, since it uses as much as digits as its factorization.

13964656543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6998400, while the sum is 52.

The spelling of 13964656543 in words is "thirteen billion, nine hundred sixty-four million, six hundred fifty-six thousand, five hundred forty-three".