643068301071 has 32 divisors (see below), whose sum is σ = 1002072217600. Its totient is φ = 366673662432.

The previous prime is 643068301003. The next prime is 643068301093. The reversal of 643068301071 is 170103860346.

It is not a de Polignac number, because 643068301071 - 2⁷ = 643068300943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (643068301171) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198460 + ... + 1151313.

It is an arithmetic number, because the mean of its divisors is an integer number (31314756800).

Almost surely, 2^643068301071 is an apocalyptic number.

643068301071 is a deficient number, since it is larger than the sum of its proper divisors (359003916529).

643068301071 is a wasteful number, since it uses less digits than its factorization.

643068301071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1350260 (or 1350246 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The spelling of 643068301071 in words is "six hundred forty-three billion, sixty-eight million, three hundred one thousand, seventy-one".