2217442761717 has 16 divisors (see below), whose sum is σ = 3027834384960. Its totient is φ = 1442729659392.

The previous prime is 2217442761713. The next prime is 2217442761797. The reversal of 2217442761717 is 7171672447122.

2217442761717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2217442761717 - 2² = 2217442761713 is a prime.

It is a super-2 number, since 2×2217442761717² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2217442761717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2217442761713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6905242 + ... + 7219227.

It is an arithmetic number, because the mean of its divisors is an integer number (189239649060).

Almost surely, 2^{2217442761717} is an apocalyptic number.

It is an amenable number.

2217442761717 is a deficient number, since it is larger than the sum of its proper divisors (810391623243).

2217442761717 is a wasteful number, since it uses less digits than its factorization.

2217442761717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14125732.

The product of its digits is 1843968, while the sum is 51.

The spelling of 2217442761717 in words is "two trillion, two hundred seventeen billion, four hundred forty-two million, seven hundred sixty-one thousand, seven hundred seventeen".