316239344777 has 2 divisors, whose sum is σ = 316239344778. Its totient is φ = 316239344776.

The previous prime is 316239344761. The next prime is 316239344821. The reversal of 316239344777 is 777443932613.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158388876361 + 157850468416 = 397981^2 + 397304^2 .

It is a cyclic number.

It is not a de Polignac number, because 316239344777 - 2⁴ = 316239344761 is a prime.

It is not a weakly prime, because it can be changed into another prime (316239344747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158119672388 + 158119672389.

It is an arithmetic number, because the mean of its divisors is an integer number (158119672389).

Almost surely, 2^316239344777 is an apocalyptic number.

It is an amenable number.

316239344777 is a deficient number, since it is larger than the sum of its proper divisors (1).

316239344777 is an equidigital number, since it uses as much as digits as its factorization.

316239344777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16003008, while the sum is 56.

The spelling of 316239344777 in words is "three hundred sixteen billion, two hundred thirty-nine million, three hundred forty-four thousand, seven hundred seventy-seven".