650443443257 has 2 divisors, whose sum is σ = 650443443258. Its totient is φ = 650443443256.

The previous prime is 650443443211. The next prime is 650443443263. The reversal of 650443443257 is 752344344056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 601332007936 + 49111435321 = 775456^2 + 221611^2 .

It is a cyclic number.

It is not a de Polignac number, because 650443443257 - 2⁶ = 650443443193 is a prime.

It is not a weakly prime, because it can be changed into another prime (650443445257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325221721628 + 325221721629.

It is an arithmetic number, because the mean of its divisors is an integer number (325221721629).

Almost surely, 2^650443443257 is an apocalyptic number.

It is an amenable number.

650443443257 is a deficient number, since it is larger than the sum of its proper divisors (1).

650443443257 is an equidigital number, since it uses as much as digits as its factorization.

650443443257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4838400, while the sum is 47.

The spelling of 650443443257 in words is "six hundred fifty billion, four hundred forty-three million, four hundred forty-three thousand, two hundred fifty-seven".