109505751709 has 2 divisors, whose sum is σ = 109505751710. Its totient is φ = 109505751708.

The previous prime is 109505751689. The next prime is 109505751791. The reversal of 109505751709 is 907157505901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105602251225 + 3903500484 = 324965^2 + 62478^2 .

It is a cyclic number.

It is not a de Polignac number, because 109505751709 - 2⁷ = 109505751581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109505757709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54752875854 + 54752875855.

It is an arithmetic number, because the mean of its divisors is an integer number (54752875855).

Almost surely, 2^109505751709 is an apocalyptic number.

It is an amenable number.

109505751709 is a deficient number, since it is larger than the sum of its proper divisors (1).

109505751709 is an equidigital number, since it uses as much as digits as its factorization.

109505751709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 496125, while the sum is 49.

The spelling of 109505751709 in words is "one hundred nine billion, five hundred five million, seven hundred fifty-one thousand, seven hundred nine".