9285116897129 has 2 divisors, whose sum is σ = 9285116897130. Its totient is φ = 9285116897128.

The previous prime is 9285116897107. The next prime is 9285116897131. The reversal of 9285116897129 is 9217986115829.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7382849779600 + 1902267117529 = 2717140^2 + 1379227^2 .

It is a cyclic number.

It is not a de Polignac number, because 9285116897129 - 2⁸ = 9285116896873 is a prime.

Together with 9285116897131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9285116897029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4642558448564 + 4642558448565.

It is an arithmetic number, because the mean of its divisors is an integer number (4642558448565).

Almost surely, 2^{9285116897129} is an apocalyptic number.

It is an amenable number.

9285116897129 is a deficient number, since it is larger than the sum of its proper divisors (1).

9285116897129 is an equidigital number, since it uses as much as digits as its factorization.

9285116897129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 68.

The spelling of 9285116897129 in words is "nine trillion, two hundred eighty-five billion, one hundred sixteen million, eight hundred ninety-seven thousand, one hundred twenty-nine".