13909255575473 has 2 divisors, whose sum is σ = 13909255575474. Its totient is φ = 13909255575472.

The previous prime is 13909255575443. The next prime is 13909255575491. The reversal of 13909255575473 is 37457555290931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13907178768289 + 2076807184 = 3729233^2 + 45572^2 .

It is a cyclic number.

It is not a de Polignac number, because 13909255575473 - 2⁸ = 13909255575217 is a prime.

It is not a weakly prime, because it can be changed into another prime (13909255575443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6954627787736 + 6954627787737.

It is an arithmetic number, because the mean of its divisors is an integer number (6954627787737).

Almost surely, 2^{13909255575473} is an apocalyptic number.

It is an amenable number.

13909255575473 is a deficient number, since it is larger than the sum of its proper divisors (1).

13909255575473 is an equidigital number, since it uses as much as digits as its factorization.

13909255575473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 178605000, while the sum is 65.

The spelling of 13909255575473 in words is "thirteen trillion, nine hundred nine billion, two hundred fifty-five million, five hundred seventy-five thousand, four hundred seventy-three".