318854621671 has 2 divisors, whose sum is σ = 318854621672. Its totient is φ = 318854621670.

The previous prime is 318854621647. The next prime is 318854621737. The reversal of 318854621671 is 176126458813.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 318854621671 - 2⁹ = 318854621159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (318854621611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159427310835 + 159427310836.

It is an arithmetic number, because the mean of its divisors is an integer number (159427310836).

Almost surely, 2^318854621671 is an apocalyptic number.

318854621671 is a deficient number, since it is larger than the sum of its proper divisors (1).

318854621671 is an equidigital number, since it uses as much as digits as its factorization.

318854621671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1935360, while the sum is 52.

The spelling of 318854621671 in words is "three hundred eighteen billion, eight hundred fifty-four million, six hundred twenty-one thousand, six hundred seventy-one".