17212394543 has 2 divisors, whose sum is σ = 17212394544. Its totient is φ = 17212394542.

The previous prime is 17212394509. The next prime is 17212394569. The reversal of 17212394543 is 34549321271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17212394543 - 2¹⁴ = 17212378159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 17212394543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17212391543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8606197271 + 8606197272.

It is an arithmetic number, because the mean of its divisors is an integer number (8606197272).

Almost surely, 2^17212394543 is an apocalyptic number.

17212394543 is a deficient number, since it is larger than the sum of its proper divisors (1).

17212394543 is an equidigital number, since it uses as much as digits as its factorization.

17212394543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The spelling of 17212394543 in words is "seventeen billion, two hundred twelve million, three hundred ninety-four thousand, five hundred forty-three".