641034755819 has 2 divisors, whose sum is σ = 641034755820. Its totient is φ = 641034755818.

The previous prime is 641034755791. The next prime is 641034755857. The reversal of 641034755819 is 918557430146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641034755819 - 2³⁶ = 572315279083 is a prime.

It is a super-2 number, since 2×641034755819² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (641034775819) 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, 320517377909 + 320517377910.

It is an arithmetic number, because the mean of its divisors is an integer number (320517377910).

Almost surely, 2^641034755819 is an apocalyptic number.

641034755819 is a deficient number, since it is larger than the sum of its proper divisors (1).

641034755819 is an equidigital number, since it uses as much as digits as its factorization.

641034755819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 641034755819 in words is "six hundred forty-one billion, thirty-four million, seven hundred fifty-five thousand, eight hundred nineteen".