641063675 has 24 divisors (see below), whose sum is σ = 912608256. Its totient is φ = 437588640.

The previous prime is 641063669. The next prime is 641063677. The reversal of 641063675 is 576360146.

It is a happy number.

It is not a de Polignac number, because 641063675 - 2⁶ = 641063611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (641063677) 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 in 23 ways as a sum of consecutive naturals, for example, 30812 + ... + 47238.

It is an arithmetic number, because the mean of its divisors is an integer number (38025344).

Almost surely, 2^641063675 is an apocalyptic number.

641063675 is a deficient number, since it is larger than the sum of its proper divisors (271544581).

641063675 is a wasteful number, since it uses less digits than its factorization.

641063675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16667 (or 16662 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 641063675 is about 25319.2352767614. The cubic root of 641063675 is about 862.2510322501.

The spelling of 641063675 in words is "six hundred forty-one million, sixty-three thousand, six hundred seventy-five".