318484916293 has 2 divisors, whose sum is σ = 318484916294. Its totient is φ = 318484916292.

The previous prime is 318484916251. The next prime is 318484916353. The reversal of 318484916293 is 392619484813.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276068278084 + 42416638209 = 525422^2 + 205953^2 .

It is a cyclic number.

It is not a de Polignac number, because 318484916293 - 2⁹ = 318484915781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318484917293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159242458146 + 159242458147.

It is an arithmetic number, because the mean of its divisors is an integer number (159242458147).

Almost surely, 2^318484916293 is an apocalyptic number.

It is an amenable number.

318484916293 is a deficient number, since it is larger than the sum of its proper divisors (1).

318484916293 is an equidigital number, since it uses as much as digits as its factorization.

318484916293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8957952, while the sum is 58.

The spelling of 318484916293 in words is "three hundred eighteen billion, four hundred eighty-four million, nine hundred sixteen thousand, two hundred ninety-three".