315257351343709 has 2 divisors, whose sum is σ = 315257351343710. Its totient is φ = 315257351343708.

The previous prime is 315257351343661. The next prime is 315257351343773. The reversal of 315257351343709 is 907343153752513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315254584268100 + 2767075609 = 17755410^2 + 52603^2 .

It is a cyclic number.

It is not a de Polignac number, because 315257351343709 - 2⁹ = 315257351343197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315257351323709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157628675671854 + 157628675671855.

It is an arithmetic number, because the mean of its divisors is an integer number (157628675671855).

Almost surely, 2^{315257351343709} is an apocalyptic number.

It is an amenable number.

315257351343709 is a deficient number, since it is larger than the sum of its proper divisors (1).

315257351343709 is an equidigital number, since it uses as much as digits as its factorization.

315257351343709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35721000, while the sum is 58.

The spelling of 315257351343709 in words is "three hundred fifteen trillion, two hundred fifty-seven billion, three hundred fifty-one million, three hundred forty-three thousand, seven hundred nine".