449591706253 has 2 divisors, whose sum is σ = 449591706254. Its totient is φ = 449591706252.

The previous prime is 449591706233. The next prime is 449591706271. The reversal of 449591706253 is 352607195944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230172536169 + 219419170084 = 479763^2 + 468422^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-449591706253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 449591706194 and 449591706203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449591706233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224795853126 + 224795853127.

It is an arithmetic number, because the mean of its divisors is an integer number (224795853127).

Almost surely, 2^449591706253 is an apocalyptic number.

It is an amenable number.

449591706253 is a deficient number, since it is larger than the sum of its proper divisors (1).

449591706253 is an equidigital number, since it uses as much as digits as its factorization.

449591706253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8164800, while the sum is 55.

The spelling of 449591706253 in words is "four hundred forty-nine billion, five hundred ninety-one million, seven hundred six thousand, two hundred fifty-three".