6545310894641 has 2 divisors, whose sum is σ = 6545310894642. Its totient is φ = 6545310894640.

The previous prime is 6545310894601. The next prime is 6545310894643. The reversal of 6545310894641 is 1464980135456.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3849816789025 + 2695494105616 = 1962095^2 + 1641796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6545310894641 is a prime.

It is a Sophie Germain prime.

Together with 6545310894643, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6545310894643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3272655447320 + 3272655447321.

It is an arithmetic number, because the mean of its divisors is an integer number (3272655447321).

Almost surely, 2^{6545310894641} is an apocalyptic number.

It is an amenable number.

6545310894641 is a deficient number, since it is larger than the sum of its proper divisors (1).

6545310894641 is an equidigital number, since it uses as much as digits as its factorization.

6545310894641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 6545310894641 in words is "six trillion, five hundred forty-five billion, three hundred ten million, eight hundred ninety-four thousand, six hundred forty-one".