109965417689 has 2 divisors, whose sum is σ = 109965417690. Its totient is φ = 109965417688.

The previous prime is 109965417671. The next prime is 109965417703. The reversal of 109965417689 is 986714569901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67331427289 + 42633990400 = 259483^2 + 206480^2 .

It is an emirp because it is prime and its reverse (986714569901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109965417689 is a prime.

It is not a weakly prime, because it can be changed into another prime (109965417619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54982708844 + 54982708845.

It is an arithmetic number, because the mean of its divisors is an integer number (54982708845).

Almost surely, 2^109965417689 is an apocalyptic number.

It is an amenable number.

109965417689 is a deficient number, since it is larger than the sum of its proper divisors (1).

109965417689 is an equidigital number, since it uses as much as digits as its factorization.

109965417689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 29393280, while the sum is 65.

The spelling of 109965417689 in words is "one hundred nine billion, nine hundred sixty-five million, four hundred seventeen thousand, six hundred eighty-nine".