109871569236643 has 2 divisors, whose sum is σ = 109871569236644. Its totient is φ = 109871569236642.

The previous prime is 109871569236563. The next prime is 109871569236697. The reversal of 109871569236643 is 346632965178901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109871569236643 - 2²⁵ = 109871535682211 is a prime.

It is not a weakly prime, because it can be changed into another prime (109871569237643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54935784618321 + 54935784618322.

It is an arithmetic number, because the mean of its divisors is an integer number (54935784618322).

It is a 1-persistent number, because it is pandigital, but 2⋅109871569236643 = 219743138473286 is not.

Almost surely, 2^{109871569236643} is an apocalyptic number.

109871569236643 is a deficient number, since it is larger than the sum of its proper divisors (1).

109871569236643 is an equidigital number, since it uses as much as digits as its factorization.

109871569236643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 352719360, while the sum is 70.

The spelling of 109871569236643 in words is "one hundred nine trillion, eight hundred seventy-one billion, five hundred sixty-nine million, two hundred thirty-six thousand, six hundred forty-three".