17747242213 has 2 divisors, whose sum is σ = 17747242214. Its totient is φ = 17747242212.

The previous prime is 17747242193. The next prime is 17747242301. The reversal of 17747242213 is 31224274771.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17704431364 + 42810849 = 133058^2 + 6543^2 .

It is an emirp because it is prime and its reverse (31224274771) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17747242213 - 2¹⁷ = 17747111141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17747242613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8873621106 + 8873621107.

It is an arithmetic number, because the mean of its divisors is an integer number (8873621107).

Almost surely, 2^17747242213 is an apocalyptic number.

It is an amenable number.

17747242213 is a deficient number, since it is larger than the sum of its proper divisors (1).

17747242213 is an equidigital number, since it uses as much as digits as its factorization.

17747242213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 131712, while the sum is 40.

The spelling of 17747242213 in words is "seventeen billion, seven hundred forty-seven million, two hundred forty-two thousand, two hundred thirteen".