841489258699891 has 2 divisors, whose sum is σ = 841489258699892. Its totient is φ = 841489258699890.

The previous prime is 841489258699861. The next prime is 841489258699987. The reversal of 841489258699891 is 198996852984148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 841489258699891 - 2³⁷ = 841351819746419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 841489258699796 and 841489258699805.

It is not a weakly prime, because it can be changed into another prime (841489258699861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420744629349945 + 420744629349946.

It is an arithmetic number, because the mean of its divisors is an integer number (420744629349946).

Almost surely, 2^{841489258699891} is an apocalyptic number.

841489258699891 is a deficient number, since it is larger than the sum of its proper divisors (1).

841489258699891 is an equidigital number, since it uses as much as digits as its factorization.

841489258699891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25798901760, while the sum is 91.

The spelling of 841489258699891 in words is "eight hundred forty-one trillion, four hundred eighty-nine billion, two hundred fifty-eight million, six hundred ninety-nine thousand, eight hundred ninety-one".