641993317303 has 8 divisors (see below), whose sum is σ = 691457550896. Its totient is φ = 592540531200.

The previous prime is 641993317291. The next prime is 641993317307. The reversal of 641993317303 is 303713399146.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 641993317303 - 2²⁹ = 641456446391 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 (641993317307) 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 in 7 ways as a sum of consecutive naturals, for example, 2745213 + ... + 2969878.

It is an arithmetic number, because the mean of its divisors is an integer number (86432193862).

Almost surely, 2^641993317303 is an apocalyptic number.

641993317303 is a deficient number, since it is larger than the sum of its proper divisors (49464233593).

641993317303 is a wasteful number, since it uses less digits than its factorization.

641993317303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5723745.

The product of its (nonzero) digits is 1102248, while the sum is 49.

The spelling of 641993317303 in words is "six hundred forty-one billion, nine hundred ninety-three million, three hundred seventeen thousand, three hundred three".