717212212717 has 48 divisors (see below), whose sum is σ = 989871732864. Its totient is φ = 510768720000.

The previous prime is 717212212693. The next prime is 717212212723.

717212212717 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 717212212717 - 2¹⁹ = 717211688429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 717212212717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (717212212727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 200992 + ... + 1214422.

It is an arithmetic number, because the mean of its divisors is an integer number (20622327768).

Almost surely, 2^717212212717 is an apocalyptic number.

717212212717 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

717212212717 is a deficient number, since it is larger than the sum of its proper divisors (272659520147).

717212212717 is a wasteful number, since it uses less digits than its factorization.

717212212717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013570 (or 1013563 counting only the distinct ones).

The product of its digits is 38416, while the sum is 40.

It can be divided in two parts, 717212 and 212717, that added together give a palindrome (929929).

The spelling of 717212212717 in words is "seven hundred seventeen billion, two hundred twelve million, two hundred twelve thousand, seven hundred seventeen".