315447605072417 has 2 divisors, whose sum is σ = 315447605072418. Its totient is φ = 315447605072416.

The previous prime is 315447605072407. The next prime is 315447605072459. The reversal of 315447605072417 is 714270506744513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315411774746896 + 35830325521 = 17759836^2 + 189289^2 .

It is a cyclic number.

It is not a de Polignac number, because 315447605072417 - 2¹⁰ = 315447605071393 is a prime.

It is not a weakly prime, because it can be changed into another prime (315447605072407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157723802536208 + 157723802536209.

It is an arithmetic number, because the mean of its divisors is an integer number (157723802536209).

Almost surely, 2^{315447605072417} is an apocalyptic number.

It is an amenable number.

315447605072417 is a deficient number, since it is larger than the sum of its proper divisors (1).

315447605072417 is an equidigital number, since it uses as much as digits as its factorization.

315447605072417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19756800, while the sum is 56.

The spelling of 315447605072417 in words is "three hundred fifteen trillion, four hundred forty-seven billion, six hundred five million, seventy-two thousand, four hundred seventeen".