109855338075643 has 2 divisors, whose sum is σ = 109855338075644. Its totient is φ = 109855338075642.

The previous prime is 109855338075629. The next prime is 109855338075649. The reversal of 109855338075643 is 346570833558901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109855338075643 is a prime.

It is not a weakly prime, because it can be changed into another prime (109855338075649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54927669037821 + 54927669037822.

It is an arithmetic number, because the mean of its divisors is an integer number (54927669037822).

Almost surely, 2^{109855338075643} is an apocalyptic number.

109855338075643 is a deficient number, since it is larger than the sum of its proper divisors (1).

109855338075643 is an equidigital number, since it uses as much as digits as its factorization.

109855338075643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592000, while the sum is 67.

The spelling of 109855338075643 in words is "one hundred nine trillion, eight hundred fifty-five billion, three hundred thirty-eight million, seventy-five thousand, six hundred forty-three".