457446388349 has 2 divisors, whose sum is σ = 457446388350. Its totient is φ = 457446388348.

The previous prime is 457446388331. The next prime is 457446388391. The reversal of 457446388349 is 943883644754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330768765625 + 126677622724 = 575125^2 + 355918^2 .

It is a cyclic number.

It is not a de Polignac number, because 457446388349 - 2³² = 453151421053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457446388249) 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, 228723194174 + 228723194175.

It is an arithmetic number, because the mean of its divisors is an integer number (228723194175).

Almost surely, 2^457446388349 is an apocalyptic number.

It is an amenable number.

457446388349 is a deficient number, since it is larger than the sum of its proper divisors (1).

457446388349 is an equidigital number, since it uses as much as digits as its factorization.

457446388349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 278691840, while the sum is 65.

The spelling of 457446388349 in words is "four hundred fifty-seven billion, four hundred forty-six million, three hundred eighty-eight thousand, three hundred forty-nine".