17990735519 has 2 divisors, whose sum is σ = 17990735520. Its totient is φ = 17990735518.

The previous prime is 17990735509. The next prime is 17990735563. The reversal of 17990735519 is 91553709971.

It is a weak prime.

It is an emirp because it is prime and its reverse (91553709971) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17990735519 is a prime.

It is a super-2 number, since 2×17990735519² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17990735509) 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, 8995367759 + 8995367760.

It is an arithmetic number, because the mean of its divisors is an integer number (8995367760).

Almost surely, 2^17990735519 is an apocalyptic number.

17990735519 is a deficient number, since it is larger than the sum of its proper divisors (1).

17990735519 is an equidigital number, since it uses as much as digits as its factorization.

17990735519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2679075, while the sum is 56.

The spelling of 17990735519 in words is "seventeen billion, nine hundred ninety million, seven hundred thirty-five thousand, five hundred nineteen".