17971074689 has 2 divisors, whose sum is σ = 17971074690. Its totient is φ = 17971074688.

The previous prime is 17971074631. The next prime is 17971074691. The reversal of 17971074689 is 98647017971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15346254400 + 2624820289 = 123880^2 + 51233^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17971074689 is a prime.

Together with 17971074691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (17971074889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8985537344 + 8985537345.

It is an arithmetic number, because the mean of its divisors is an integer number (8985537345).

Almost surely, 2^17971074689 is an apocalyptic number.

It is an amenable number.

17971074689 is a deficient number, since it is larger than the sum of its proper divisors (1).

17971074689 is an equidigital number, since it uses as much as digits as its factorization.

17971074689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5334336, while the sum is 59.

The spelling of 17971074689 in words is "seventeen billion, nine hundred seventy-one million, seventy-four thousand, six hundred eighty-nine".