201403440416809 has 2 divisors, whose sum is σ = 201403440416810. Its totient is φ = 201403440416808.

The previous prime is 201403440416767. The next prime is 201403440416819. The reversal of 201403440416809 is 908614044304102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122445909918784 + 78957530498025 = 11065528^2 + 8885805^2 .

It is a cyclic number.

It is not a de Polignac number, because 201403440416809 - 2¹³ = 201403440408617 is a prime.

It is not a weakly prime, because it can be changed into another prime (201403440416819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100701720208404 + 100701720208405.

It is an arithmetic number, because the mean of its divisors is an integer number (100701720208405).

Almost surely, 2^{201403440416809} is an apocalyptic number.

It is an amenable number.

201403440416809 is a deficient number, since it is larger than the sum of its proper divisors (1).

201403440416809 is an equidigital number, since it uses as much as digits as its factorization.

201403440416809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 46.

The spelling of 201403440416809 in words is "two hundred one trillion, four hundred three billion, four hundred forty million, four hundred sixteen thousand, eight hundred nine".