8517116287 has 2 divisors, whose sum is σ = 8517116288. Its totient is φ = 8517116286.

The previous prime is 8517116281. The next prime is 8517116299. The reversal of 8517116287 is 7826117158.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8517116287 - 2¹⁹ = 8516591999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8517116281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4258558143 + 4258558144.

It is an arithmetic number, because the mean of its divisors is an integer number (4258558144).

Almost surely, 2^8517116287 is an apocalyptic number.

8517116287 is a deficient number, since it is larger than the sum of its proper divisors (1).

8517116287 is an equidigital number, since it uses as much as digits as its factorization.

8517116287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 46.

The square root of 8517116287 is about 92288.2239887625. The cubic root of 8517116287 is about 2042.1964909345.

The spelling of 8517116287 in words is "eight billion, five hundred seventeen million, one hundred sixteen thousand, two hundred eighty-seven".