633670448549 has 2 divisors, whose sum is σ = 633670448550. Its totient is φ = 633670448548.

The previous prime is 633670448507. The next prime is 633670448561. The reversal of 633670448549 is 945844076336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 628555624225 + 5114824324 = 792815^2 + 71518^2 .

It is a cyclic number.

It is not a de Polignac number, because 633670448549 - 2²⁴ = 633653671333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (633670448249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 316835224274 + 316835224275.

It is an arithmetic number, because the mean of its divisors is an integer number (316835224275).

Almost surely, 2^633670448549 is an apocalyptic number.

It is an amenable number.

633670448549 is a deficient number, since it is larger than the sum of its proper divisors (1).

633670448549 is an equidigital number, since it uses as much as digits as its factorization.

633670448549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52254720, while the sum is 59.

The spelling of 633670448549 in words is "six hundred thirty-three billion, six hundred seventy million, four hundred forty-eight thousand, five hundred forty-nine".