17966875919 has 2 divisors, whose sum is σ = 17966875920. Its totient is φ = 17966875918.

The previous prime is 17966875879. The next prime is 17966875943. The reversal of 17966875919 is 91957866971.

It is a strong prime.

It is an emirp because it is prime and its reverse (91957866971) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17966875919 - 2¹² = 17966871823 is a prime.

It is a super-2 number, since 2×17966875919² (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 (17966875999) 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, 8983437959 + 8983437960.

It is an arithmetic number, because the mean of its divisors is an integer number (8983437960).

Almost surely, 2^17966875919 is an apocalyptic number.

17966875919 is a deficient number, since it is larger than the sum of its proper divisors (1).

17966875919 is an equidigital number, since it uses as much as digits as its factorization.

17966875919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51438240, while the sum is 68.

The spelling of 17966875919 in words is "seventeen billion, nine hundred sixty-six million, eight hundred seventy-five thousand, nine hundred nineteen".