841591626195121 has 2 divisors, whose sum is σ = 841591626195122. Its totient is φ = 841591626195120.

The previous prime is 841591626195053. The next prime is 841591626195157. The reversal of 841591626195121 is 121591626195148.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 841490461487025 + 101164708096 = 29008455^2 + 318064^2 .

It is a cyclic number.

It is not a de Polignac number, because 841591626195121 - 2⁷ = 841591626194993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 841591626195121.

It is not a weakly prime, because it can be changed into another prime (841591626195521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420795813097560 + 420795813097561.

It is an arithmetic number, because the mean of its divisors is an integer number (420795813097561).

Almost surely, 2^{841591626195121} is an apocalyptic number.

It is an amenable number.

841591626195121 is a deficient number, since it is larger than the sum of its proper divisors (1).

841591626195121 is an equidigital number, since it uses as much as digits as its factorization.

841591626195121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 61.

The spelling of 841591626195121 in words is "eight hundred forty-one trillion, five hundred ninety-one billion, six hundred twenty-six million, one hundred ninety-five thousand, one hundred twenty-one".