15857285714317 has 2 divisors, whose sum is σ = 15857285714318. Its totient is φ = 15857285714316.

The previous prime is 15857285714269. The next prime is 15857285714339. The reversal of 15857285714317 is 71341758275851.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15346602540676 + 510683173641 = 3917474^2 + 714621^2 .

It is a cyclic number.

It is not a de Polignac number, because 15857285714317 - 2¹¹ = 15857285712269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15857285724317) 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, 7928642857158 + 7928642857159.

It is an arithmetic number, because the mean of its divisors is an integer number (7928642857159).

Almost surely, 2^{15857285714317} is an apocalyptic number.

It is an amenable number.

15857285714317 is a deficient number, since it is larger than the sum of its proper divisors (1).

15857285714317 is an equidigital number, since it uses as much as digits as its factorization.

15857285714317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856000, while the sum is 64.

The spelling of 15857285714317 in words is "fifteen trillion, eight hundred fifty-seven billion, two hundred eighty-five million, seven hundred fourteen thousand, three hundred seventeen".