17420788591 has 2 divisors, whose sum is σ = 17420788592. Its totient is φ = 17420788590.

The previous prime is 17420788417. The next prime is 17420788597. The reversal of 17420788591 is 19588702471.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17420788591 - 2¹¹ = 17420786543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17420788597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8710394295 + 8710394296.

It is an arithmetic number, because the mean of its divisors is an integer number (8710394296).

Almost surely, 2^17420788591 is an apocalyptic number.

17420788591 is a deficient number, since it is larger than the sum of its proper divisors (1).

17420788591 is an equidigital number, since it uses as much as digits as its factorization.

17420788591 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1128960, while the sum is 52.

The spelling of 17420788591 in words is "seventeen billion, four hundred twenty million, seven hundred eighty-eight thousand, five hundred ninety-one".