17649450941 has 2 divisors, whose sum is σ = 17649450942. Its totient is φ = 17649450940.

The previous prime is 17649450901. The next prime is 17649450961. The reversal of 17649450941 is 14905494671.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17537704900 + 111746041 = 132430^2 + 10571^2 .

It is an emirp because it is prime and its reverse (14905494671) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17649450941 - 2⁶ = 17649450877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17649450941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17649450901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8824725470 + 8824725471.

It is an arithmetic number, because the mean of its divisors is an integer number (8824725471).

Almost surely, 2^17649450941 is an apocalyptic number.

It is an amenable number.

17649450941 is a deficient number, since it is larger than the sum of its proper divisors (1).

17649450941 is an equidigital number, since it uses as much as digits as its factorization.

17649450941 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 50.

The spelling of 17649450941 in words is "seventeen billion, six hundred forty-nine million, four hundred fifty thousand, nine hundred forty-one".