648802810741 has 2 divisors, whose sum is σ = 648802810742. Its totient is φ = 648802810740.

The previous prime is 648802810739. The next prime is 648802810829. The reversal of 648802810741 is 147018208846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646335602500 + 2467208241 = 803950^2 + 49671^2 .

It is a cyclic number.

It is not a de Polignac number, because 648802810741 - 2¹ = 648802810739 is a prime.

Together with 648802810739, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648802819741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324401405370 + 324401405371.

It is an arithmetic number, because the mean of its divisors is an integer number (324401405371).

Almost surely, 2^648802810741 is an apocalyptic number.

It is an amenable number.

648802810741 is a deficient number, since it is larger than the sum of its proper divisors (1).

648802810741 is an equidigital number, since it uses as much as digits as its factorization.

648802810741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 688128, while the sum is 49.

The spelling of 648802810741 in words is "six hundred forty-eight billion, eight hundred two million, eight hundred ten thousand, seven hundred forty-one".