316825217729 has 2 divisors, whose sum is σ = 316825217730. Its totient is φ = 316825217728.

The previous prime is 316825217719. The next prime is 316825217743. The reversal of 316825217729 is 927712528613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185003214400 + 131822003329 = 430120^2 + 363073^2 .

It is a cyclic number.

It is not a de Polignac number, because 316825217729 - 2⁸ = 316825217473 is a prime.

It is not a weakly prime, because it can be changed into another prime (316825217719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158412608864 + 158412608865.

It is an arithmetic number, because the mean of its divisors is an integer number (158412608865).

Almost surely, 2^316825217729 is an apocalyptic number.

It is an amenable number.

316825217729 is a deficient number, since it is larger than the sum of its proper divisors (1).

316825217729 is an equidigital number, since it uses as much as digits as its factorization.

316825217729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2540160, while the sum is 53.

The spelling of 316825217729 in words is "three hundred sixteen billion, eight hundred twenty-five million, two hundred seventeen thousand, seven hundred twenty-nine".