641420064422341 has 2 divisors, whose sum is σ = 641420064422342. Its totient is φ = 641420064422340.

The previous prime is 641420064422213. The next prime is 641420064422353. The reversal of 641420064422341 is 143224460024146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 583257324819841 + 58162739602500 = 24150721^2 + 7626450^2 .

It is a cyclic number.

It is not a de Polignac number, because 641420064422341 - 2⁷ = 641420064422213 is a prime.

It is a super-2 number, since 2×641420064422341² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641420064425341) 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, 320710032211170 + 320710032211171.

It is an arithmetic number, because the mean of its divisors is an integer number (320710032211171).

Almost surely, 2^{641420064422341} is an apocalyptic number.

It is an amenable number.

641420064422341 is a deficient number, since it is larger than the sum of its proper divisors (1).

641420064422341 is an equidigital number, since it uses as much as digits as its factorization.

641420064422341 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 884736, while the sum is 43.

The spelling of 641420064422341 in words is "six hundred forty-one trillion, four hundred twenty billion, sixty-four million, four hundred twenty-two thousand, three hundred forty-one".