318646134427 has 2 divisors, whose sum is σ = 318646134428. Its totient is φ = 318646134426.

The previous prime is 318646134353. The next prime is 318646134481. The reversal of 318646134427 is 724431646813.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 318646134427 - 2¹¹ = 318646132379 is a prime.

It is not a weakly prime, because it can be changed into another prime (318646234427) 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, 159323067213 + 159323067214.

It is an arithmetic number, because the mean of its divisors is an integer number (159323067214).

Almost surely, 2^318646134427 is an apocalyptic number.

318646134427 is a deficient number, since it is larger than the sum of its proper divisors (1).

318646134427 is an equidigital number, since it uses as much as digits as its factorization.

318646134427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 49.

The spelling of 318646134427 in words is "three hundred eighteen billion, six hundred forty-six million, one hundred thirty-four thousand, four hundred twenty-seven".