8719985163157 has 2 divisors, whose sum is σ = 8719985163158. Its totient is φ = 8719985163156.

The previous prime is 8719985163067. The next prime is 8719985163161. The reversal of 8719985163157 is 7513615899178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8622861933841 + 97123229316 = 2936471^2 + 311646^2 .

It is a cyclic number.

It is not a de Polignac number, because 8719985163157 - 2¹¹ = 8719985161109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8719985163457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4359992581578 + 4359992581579.

It is an arithmetic number, because the mean of its divisors is an integer number (4359992581579).

Almost surely, 2^{8719985163157} is an apocalyptic number.

It is an amenable number.

8719985163157 is a deficient number, since it is larger than the sum of its proper divisors (1).

8719985163157 is an equidigital number, since it uses as much as digits as its factorization.

8719985163157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 114307200, while the sum is 70.

The spelling of 8719985163157 in words is "eight trillion, seven hundred nineteen billion, nine hundred eighty-five million, one hundred sixty-three thousand, one hundred fifty-seven".