17020420526287 has 2 divisors, whose sum is σ = 17020420526288. Its totient is φ = 17020420526286.

The previous prime is 17020420526243. The next prime is 17020420526297. The reversal of 17020420526287 is 78262502402071.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17020420526287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17020420526297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8510210263143 + 8510210263144.

It is an arithmetic number, because the mean of its divisors is an integer number (8510210263144).

Almost surely, 2^{17020420526287} is an apocalyptic number.

17020420526287 is a deficient number, since it is larger than the sum of its proper divisors (1).

17020420526287 is an equidigital number, since it uses as much as digits as its factorization.

17020420526287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 17020420526287 in words is "seventeen trillion, twenty billion, four hundred twenty million, five hundred twenty-six thousand, two hundred eighty-seven".