643310006147 has 2 divisors, whose sum is σ = 643310006148. Its totient is φ = 643310006146.

The previous prime is 643310006099. The next prime is 643310006167. The reversal of 643310006147 is 741600013346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 643310006147 - 2⁶ = 643310006083 is a prime.

It is not a weakly prime, because it can be changed into another prime (643310006167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 321655003073 + 321655003074.

It is an arithmetic number, because the mean of its divisors is an integer number (321655003074).

Almost surely, 2^643310006147 is an apocalyptic number.

643310006147 is a deficient number, since it is larger than the sum of its proper divisors (1).

643310006147 is an equidigital number, since it uses as much as digits as its factorization.

643310006147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 643310006147 in words is "six hundred forty-three billion, three hundred ten million, six thousand, one hundred forty-seven".