641135056579 has 2 divisors, whose sum is σ = 641135056580. Its totient is φ = 641135056578.

The previous prime is 641135056553. The next prime is 641135056613. The reversal of 641135056579 is 975650531146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641135056579 - 2²¹ = 641132959427 is a prime.

It is a super-2 number, since 2×641135056579² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (641135050579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320567528289 + 320567528290.

It is an arithmetic number, because the mean of its divisors is an integer number (320567528290).

Almost surely, 2^641135056579 is an apocalyptic number.

641135056579 is a deficient number, since it is larger than the sum of its proper divisors (1).

641135056579 is an equidigital number, since it uses as much as digits as its factorization.

641135056579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 641135056579 in words is "six hundred forty-one billion, one hundred thirty-five million, fifty-six thousand, five hundred seventy-nine".