1109843786743 has 2 divisors, whose sum is σ = 1109843786744. Its totient is φ = 1109843786742.

The previous prime is 1109843786741. The next prime is 1109843786767. The reversal of 1109843786743 is 3476873489011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1109843786743 - 2¹ = 1109843786741 is a prime.

Together with 1109843786741, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1109843786741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554921893371 + 554921893372.

It is an arithmetic number, because the mean of its divisors is an integer number (554921893372).

Almost surely, 2^{1109843786743} is an apocalyptic number.

1109843786743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109843786743 is an equidigital number, since it uses as much as digits as its factorization.

1109843786743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24385536, while the sum is 61.

The spelling of 1109843786743 in words is "one trillion, one hundred nine billion, eight hundred forty-three million, seven hundred eighty-six thousand, seven hundred forty-three".