6545405759 has 2 divisors, whose sum is σ = 6545405760. Its totient is φ = 6545405758.

The previous prime is 6545405729. The next prime is 6545405761. The reversal of 6545405759 is 9575045456.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6545405759 is a prime.

Together with 6545405761, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6545405719) 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, 3272702879 + 3272702880.

It is an arithmetic number, because the mean of its divisors is an integer number (3272702880).

Almost surely, 2^6545405759 is an apocalyptic number.

6545405759 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545405759 is an equidigital number, since it uses as much as digits as its factorization.

6545405759 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780000, while the sum is 50.

The square root of 6545405759 is about 80903.6819866686. The cubic root of 6545405759 is about 1870.5910757933.

The spelling of 6545405759 in words is "six billion, five hundred forty-five million, four hundred five thousand, seven hundred fifty-nine".