351444640064671 has 2 divisors, whose sum is σ = 351444640064672. Its totient is φ = 351444640064670.

The previous prime is 351444640064587. The next prime is 351444640064747. The reversal of 351444640064671 is 176460046444153.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 351444640064671 - 2⁷ = 351444640064543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351444640064471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175722320032335 + 175722320032336.

It is an arithmetic number, because the mean of its divisors is an integer number (175722320032336).

Almost surely, 2^{351444640064671} is an apocalyptic number.

351444640064671 is a deficient number, since it is larger than the sum of its proper divisors (1).

351444640064671 is an equidigital number, since it uses as much as digits as its factorization.

351444640064671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23224320, while the sum is 55.

The spelling of 351444640064671 in words is "three hundred fifty-one trillion, four hundred forty-four billion, six hundred forty million, sixty-four thousand, six hundred seventy-one".