318319372757 has 2 divisors, whose sum is σ = 318319372758. Its totient is φ = 318319372756.

The previous prime is 318319372751. The next prime is 318319372817. The reversal of 318319372757 is 757273913813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203212525681 + 115106847076 = 450791^2 + 339274^2 .

It is a cyclic number.

It is not a de Polignac number, because 318319372757 - 2¹⁶ = 318319307221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318319372751) 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, 159159686378 + 159159686379.

It is an arithmetic number, because the mean of its divisors is an integer number (159159686379).

Almost surely, 2^318319372757 is an apocalyptic number.

It is an amenable number.

318319372757 is a deficient number, since it is larger than the sum of its proper divisors (1).

318319372757 is an equidigital number, since it uses as much as digits as its factorization.

318319372757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6667920, while the sum is 56.

The spelling of 318319372757 in words is "three hundred eighteen billion, three hundred nineteen million, three hundred seventy-two thousand, seven hundred fifty-seven".