316344020443609 has 2 divisors, whose sum is σ = 316344020443610. Its totient is φ = 316344020443608.

The previous prime is 316344020443603. The next prime is 316344020443621. The reversal of 316344020443609 is 906344020443613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310757666022400 + 5586354421209 = 17628320^2 + 2363547^2 .

It is a cyclic number.

It is not a de Polignac number, because 316344020443609 - 2²¹ = 316344018346457 is a prime.

It is not a weakly prime, because it can be changed into another prime (316344020443603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158172010221804 + 158172010221805.

It is an arithmetic number, because the mean of its divisors is an integer number (158172010221805).

Almost surely, 2^{316344020443609} is an apocalyptic number.

It is an amenable number.

316344020443609 is a deficient number, since it is larger than the sum of its proper divisors (1).

316344020443609 is an equidigital number, since it uses as much as digits as its factorization.

316344020443609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 49.

The spelling of 316344020443609 in words is "three hundred sixteen trillion, three hundred forty-four billion, twenty million, four hundred forty-three thousand, six hundred nine".