641305629413 has 2 divisors, whose sum is σ = 641305629414. Its totient is φ = 641305629412.

The previous prime is 641305629347. The next prime is 641305629421. The reversal of 641305629413 is 314926503146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 552854705764 + 88450923649 = 743542^2 + 297407^2 .

It is a cyclic number.

It is not a de Polignac number, because 641305629413 - 2³² = 637010662117 is a prime.

It is a super-3 number, since 3×641305629413³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641305629463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320652814706 + 320652814707.

It is an arithmetic number, because the mean of its divisors is an integer number (320652814707).

Almost surely, 2^641305629413 is an apocalyptic number.

It is an amenable number.

641305629413 is a deficient number, since it is larger than the sum of its proper divisors (1).

641305629413 is an equidigital number, since it uses as much as digits as its factorization.

641305629413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 641305629413 in words is "six hundred forty-one billion, three hundred five million, six hundred twenty-nine thousand, four hundred thirteen".