13754568643 has 2 divisors, whose sum is σ = 13754568644. Its totient is φ = 13754568642.

The previous prime is 13754568637. The next prime is 13754568661. The reversal of 13754568643 is 34686545731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13754568643 is a prime.

It is a super-2 number, since 2×13754568643² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13754568613) 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 as a sum of consecutive naturals, namely, 6877284321 + 6877284322.

It is an arithmetic number, because the mean of its divisors is an integer number (6877284322).

Almost surely, 2^13754568643 is an apocalyptic number.

13754568643 is a deficient number, since it is larger than the sum of its proper divisors (1).

13754568643 is an equidigital number, since it uses as much as digits as its factorization.

13754568643 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 52.

The spelling of 13754568643 in words is "thirteen billion, seven hundred fifty-four million, five hundred sixty-eight thousand, six hundred forty-three".