315447605072393 has 2 divisors, whose sum is σ = 315447605072394. Its totient is φ = 315447605072392.

The previous prime is 315447605072371. The next prime is 315447605072407. The reversal of 315447605072393 is 393270506744513.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315077694183184 + 369910889209 = 17750428^2 + 608203^2 .

It is a cyclic number.

It is not a de Polignac number, because 315447605072393 - 2²⁶ = 315447537963529 is a prime.

It is not a weakly prime, because it can be changed into another prime (315447605072293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157723802536196 + 157723802536197.

It is an arithmetic number, because the mean of its divisors is an integer number (157723802536197).

Almost surely, 2^{315447605072393} is an apocalyptic number.

It is an amenable number.

315447605072393 is a deficient number, since it is larger than the sum of its proper divisors (1).

315447605072393 is an equidigital number, since it uses as much as digits as its factorization.

315447605072393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57153600, while the sum is 59.

The spelling of 315447605072393 in words is "three hundred fifteen trillion, four hundred forty-seven billion, six hundred five million, seventy-two thousand, three hundred ninety-three".