318377773853 has 2 divisors, whose sum is σ = 318377773854. Its totient is φ = 318377773852.

The previous prime is 318377773811. The next prime is 318377773871. The reversal of 318377773853 is 358377773813.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192684125764 + 125693648089 = 438958^2 + 354533^2 .

It is an emirp because it is prime and its reverse (358377773813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 318377773853 - 2¹² = 318377769757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318377773873) 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, 159188886926 + 159188886927.

It is an arithmetic number, because the mean of its divisors is an integer number (159188886927).

Almost surely, 2^318377773853 is an apocalyptic number.

It is an amenable number.

318377773853 is a deficient number, since it is larger than the sum of its proper divisors (1).

318377773853 is an equidigital number, since it uses as much as digits as its factorization.

318377773853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62233920, while the sum is 62.

The spelling of 318377773853 in words is "three hundred eighteen billion, three hundred seventy-seven million, seven hundred seventy-three thousand, eight hundred fifty-three".