17420375664353 has 2 divisors, whose sum is σ = 17420375664354. Its totient is φ = 17420375664352.

The previous prime is 17420375664343. The next prime is 17420375664413. The reversal of 17420375664353 is 35346657302471.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9842726585344 + 7577649079009 = 3137312^2 + 2752753^2 .

It is an emirp because it is prime and its reverse (35346657302471) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17420375664353 - 2¹⁰ = 17420375663329 is a prime.

It is a super-2 number, since 2×17420375664353² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (17420375664343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8710187832176 + 8710187832177.

It is an arithmetic number, because the mean of its divisors is an integer number (8710187832177).

Almost surely, 2^{17420375664353} is an apocalyptic number.

It is an amenable number.

17420375664353 is a deficient number, since it is larger than the sum of its proper divisors (1).

17420375664353 is an equidigital number, since it uses as much as digits as its factorization.

17420375664353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38102400, while the sum is 56.

The spelling of 17420375664353 in words is "seventeen trillion, four hundred twenty billion, three hundred seventy-five million, six hundred sixty-four thousand, three hundred fifty-three".