318243426953 has 2 divisors, whose sum is σ = 318243426954. Its totient is φ = 318243426952.

The previous prime is 318243426901. The next prime is 318243426961. The reversal of 318243426953 is 359624342813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 318127584784 + 115842169 = 564028^2 + 10763^2 .

It is a cyclic number.

It is not a de Polignac number, because 318243426953 - 2¹⁶ = 318243361417 is a prime.

It is not a weakly prime, because it can be changed into another prime (318243426983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159121713476 + 159121713477.

It is an arithmetic number, because the mean of its divisors is an integer number (159121713477).

Almost surely, 2^318243426953 is an apocalyptic number.

It is an amenable number.

318243426953 is a deficient number, since it is larger than the sum of its proper divisors (1).

318243426953 is an equidigital number, since it uses as much as digits as its factorization.

318243426953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 50.

The spelling of 318243426953 in words is "three hundred eighteen billion, two hundred forty-three million, four hundred twenty-six thousand, nine hundred fifty-three".