316998897773 has 2 divisors, whose sum is σ = 316998897774. Its totient is φ = 316998897772.

The previous prime is 316998897757. The next prime is 316998897797. The reversal of 316998897773 is 377798899613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192969554089 + 124029343684 = 439283^2 + 352178^2 .

It is a cyclic number.

It is not a de Polignac number, because 316998897773 - 2⁴ = 316998897757 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 316998897694 and 316998897703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316998897713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158499448886 + 158499448887.

It is an arithmetic number, because the mean of its divisors is an integer number (158499448887).

Almost surely, 2^316998897773 is an apocalyptic number.

It is an amenable number.

316998897773 is a deficient number, since it is larger than the sum of its proper divisors (1).

316998897773 is an equidigital number, since it uses as much as digits as its factorization.

316998897773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864162432, while the sum is 77.

The spelling of 316998897773 in words is "three hundred sixteen billion, nine hundred ninety-eight million, eight hundred ninety-seven thousand, seven hundred seventy-three".