17115751481 has 2 divisors, whose sum is σ = 17115751482. Its totient is φ = 17115751480.

The previous prime is 17115751423. The next prime is 17115751529. The reversal of 17115751481 is 18415751171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11381475856 + 5734275625 = 106684^2 + 75725^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17115751481 is a prime.

It is a super-2 number, since 2×17115751481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (17115757481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8557875740 + 8557875741.

It is an arithmetic number, because the mean of its divisors is an integer number (8557875741).

Almost surely, 2^17115751481 is an apocalyptic number.

It is an amenable number.

17115751481 is a deficient number, since it is larger than the sum of its proper divisors (1).

17115751481 is an equidigital number, since it uses as much as digits as its factorization.

17115751481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39200, while the sum is 41.

The spelling of 17115751481 in words is "seventeen billion, one hundred fifteen million, seven hundred fifty-one thousand, four hundred eighty-one".