14688848509 has 2 divisors, whose sum is σ = 14688848510. Its totient is φ = 14688848508.

The previous prime is 14688848497. The next prime is 14688848549. The reversal of 14688848509 is 90584888641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13625892900 + 1062955609 = 116730^2 + 32603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14688848509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14688848549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7344424254 + 7344424255.

It is an arithmetic number, because the mean of its divisors is an integer number (7344424255).

Almost surely, 2^14688848509 is an apocalyptic number.

It is an amenable number.

14688848509 is a deficient number, since it is larger than the sum of its proper divisors (1).

14688848509 is an equidigital number, since it uses as much as digits as its factorization.

14688848509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17694720, while the sum is 61.

The spelling of 14688848509 in words is "fourteen billion, six hundred eighty-eight million, eight hundred forty-eight thousand, five hundred nine".