812125034717 has 2 divisors, whose sum is σ = 812125034718. Its totient is φ = 812125034716.

The previous prime is 812125034681. The next prime is 812125034719. The reversal of 812125034717 is 717430521218.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811564955161 + 560079556 = 900869^2 + 23666^2 .

It is a cyclic number.

It is not a de Polignac number, because 812125034717 - 2¹⁰ = 812125033693 is a prime.

Together with 812125034719, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (812125034719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406062517358 + 406062517359.

It is an arithmetic number, because the mean of its divisors is an integer number (406062517359).

Almost surely, 2^812125034717 is an apocalyptic number.

It is an amenable number.

812125034717 is a deficient number, since it is larger than the sum of its proper divisors (1).

812125034717 is an equidigital number, since it uses as much as digits as its factorization.

812125034717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 812125034717 in words is "eight hundred twelve billion, one hundred twenty-five million, thirty-four thousand, seven hundred seventeen".