14521636417 has 2 divisors, whose sum is σ = 14521636418. Its totient is φ = 14521636416.

The previous prime is 14521636411. The next prime is 14521636421. The reversal of 14521636417 is 71463612541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10523477056 + 3998159361 = 102584^2 + 63231^2 .

It is an emirp because it is prime and its reverse (71463612541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 14521636417 - 2¹⁹ = 14521112129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 14521636417.

It is not a weakly prime, because it can be changed into another prime (14521636411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7260818208 + 7260818209.

It is an arithmetic number, because the mean of its divisors is an integer number (7260818209).

Almost surely, 2^14521636417 is an apocalyptic number.

It is an amenable number.

14521636417 is a deficient number, since it is larger than the sum of its proper divisors (1).

14521636417 is an equidigital number, since it uses as much as digits as its factorization.

14521636417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The spelling of 14521636417 in words is "fourteen billion, five hundred twenty-one million, six hundred thirty-six thousand, four hundred seventeen".