641535900604 has 12 divisors (see below), whose sum is σ = 1123539001200. Its totient is φ = 320524757408.

The previous prime is 641535900559. The next prime is 641535900617. The reversal of 641535900604 is 406009535146.

It is a congruent number.

It is an unprimeable number.

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, 60792289 + ... + 60802840.

It is an arithmetic number, because the mean of its divisors is an integer number (93628250100).

Almost surely, 2^641535900604 is an apocalyptic number.

It is an amenable number.

641535900604 is a deficient number, since it is larger than the sum of its proper divisors (482003100596).

641535900604 is a wasteful number, since it uses less digits than its factorization.

641535900604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121596452 (or 121596450 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 641535900604 in words is "six hundred forty-one billion, five hundred thirty-five million, nine hundred thousand, six hundred four".