1717020200517 has 16 divisors (see below), whose sum is σ = 2309105364480. Its totient is φ = 1134846226800.

The previous prime is 1717020200513. The next prime is 1717020200561. The reversal of 1717020200517 is 7150020207171.

It is not a de Polignac number, because 1717020200517 - 2² = 1717020200513 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1717020200513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4652209 + ... + 5007702.

It is an arithmetic number, because the mean of its divisors is an integer number (144319085280).

Almost surely, 2^{1717020200517} is an apocalyptic number.

It is an amenable number.

1717020200517 is a deficient number, since it is larger than the sum of its proper divisors (592085163963).

1717020200517 is a wasteful number, since it uses less digits than its factorization.

1717020200517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9660424.

The product of its (nonzero) digits is 6860, while the sum is 33.

Adding to 1717020200517 its reverse (7150020207171), we get a palindrome (8867040407688).

The spelling of 1717020200517 in words is "one trillion, seven hundred seventeen billion, twenty million, two hundred thousand, five hundred seventeen".