641703344536 has 16 divisors (see below), whose sum is σ = 1211849843400. Its totient is φ = 318543386304.

The previous prime is 641703344531. The next prime is 641703344543. The reversal of 641703344536 is 635443307146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641703344531) 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 3 ways as a sum of consecutive naturals, for example, 288534565 + ... + 288536788.

Almost surely, 2^641703344536 is an apocalyptic number.

It is an amenable number.

641703344536 is a deficient number, since it is larger than the sum of its proper divisors (570146498864).

641703344536 is a wasteful number, since it uses less digits than its factorization.

641703344536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577071498 (or 577071494 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 46.

The spelling of 641703344536 in words is "six hundred forty-one billion, seven hundred three million, three hundred forty-four thousand, five hundred thirty-six".