17420497895513 has 2 divisors, whose sum is σ = 17420497895514. Its totient is φ = 17420497895512.

The previous prime is 17420497895459. The next prime is 17420497895543. The reversal of 17420497895513 is 31559879402471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17419504574224 + 993321289 = 4173668^2 + 31517^2 .

It is a cyclic number.

It is not a de Polignac number, because 17420497895513 - 2⁸ = 17420497895257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17420497895513.

It is not a weakly prime, because it can be changed into another prime (17420497895543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8710248947756 + 8710248947757.

It is an arithmetic number, because the mean of its divisors is an integer number (8710248947757).

Almost surely, 2^{17420497895513} is an apocalyptic number.

It is an amenable number.

17420497895513 is a deficient number, since it is larger than the sum of its proper divisors (1).

17420497895513 is an equidigital number, since it uses as much as digits as its factorization.

17420497895513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 17420497895513 in words is "seventeen trillion, four hundred twenty billion, four hundred ninety-seven million, eight hundred ninety-five thousand, five hundred thirteen".