447657113245217 has 2 divisors, whose sum is σ = 447657113245218. Its totient is φ = 447657113245216.

The previous prime is 447657113245169. The next prime is 447657113245291. The reversal of 447657113245217 is 712542311756744.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 446979259069456 + 677854175761 = 21141884^2 + 823319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-447657113245217 is a prime.

It is not a weakly prime, because it can be changed into another prime (447657113245417) 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, 223828556622608 + 223828556622609.

It is an arithmetic number, because the mean of its divisors is an integer number (223828556622609).

Almost surely, 2^{447657113245217} is an apocalyptic number.

It is an amenable number.

447657113245217 is a deficient number, since it is larger than the sum of its proper divisors (1).

447657113245217 is an equidigital number, since it uses as much as digits as its factorization.

447657113245217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39513600, while the sum is 59.

The spelling of 447657113245217 in words is "four hundred forty-seven trillion, six hundred fifty-seven billion, one hundred thirteen million, two hundred forty-five thousand, two hundred seventeen".