648548883341 has 2 divisors, whose sum is σ = 648548883342. Its totient is φ = 648548883340.

The previous prime is 648548883263. The next prime is 648548883379. The reversal of 648548883341 is 143388845846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 638434558441 + 10114324900 = 799021^2 + 100570^2 .

It is a cyclic number.

It is not a de Polignac number, because 648548883341 - 2³⁸ = 373670976397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (648548880341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324274441670 + 324274441671.

It is an arithmetic number, because the mean of its divisors is an integer number (324274441671).

Almost surely, 2^648548883341 is an apocalyptic number.

It is an amenable number.

648548883341 is a deficient number, since it is larger than the sum of its proper divisors (1).

648548883341 is an equidigital number, since it uses as much as digits as its factorization.

648548883341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70778880, while the sum is 62.

The spelling of 648548883341 in words is "six hundred forty-eight billion, five hundred forty-eight million, eight hundred eighty-three thousand, three hundred forty-one".