6541105005779 has 2 divisors, whose sum is σ = 6541105005780. Its totient is φ = 6541105005778.

The previous prime is 6541105005761. The next prime is 6541105005863. The reversal of 6541105005779 is 9775005011456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6541105005779 - 2⁴⁰ = 5441593378003 is a prime.

It is not a weakly prime, because it can be changed into another prime (6541105002779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3270552502889 + 3270552502890.

It is an arithmetic number, because the mean of its divisors is an integer number (3270552502890).

Almost surely, 2^{6541105005779} is an apocalyptic number.

6541105005779 is a deficient number, since it is larger than the sum of its proper divisors (1).

6541105005779 is an equidigital number, since it uses as much as digits as its factorization.

6541105005779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1323000, while the sum is 50.

The spelling of 6541105005779 in words is "six trillion, five hundred forty-one billion, one hundred five million, five thousand, seven hundred seventy-nine".