6531345577241 has 2 divisors, whose sum is σ = 6531345577242. Its totient is φ = 6531345577240.

The previous prime is 6531345577177. The next prime is 6531345577283. The reversal of 6531345577241 is 1427755431356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6002083507225 + 529262070016 = 2449915^2 + 727504^2 .

It is a cyclic number.

It is not a de Polignac number, because 6531345577241 - 2⁶ = 6531345577177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6531345577541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3265672788620 + 3265672788621.

It is an arithmetic number, because the mean of its divisors is an integer number (3265672788621).

Almost surely, 2^{6531345577241} is an apocalyptic number.

It is an amenable number.

6531345577241 is a deficient number, since it is larger than the sum of its proper divisors (1).

6531345577241 is an equidigital number, since it uses as much as digits as its factorization.

6531345577241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10584000, while the sum is 53.

The spelling of 6531345577241 in words is "six trillion, five hundred thirty-one billion, three hundred forty-five million, five hundred seventy-seven thousand, two hundred forty-one".