641323600436 has 12 divisors (see below), whose sum is σ = 1146195371328. Its totient is φ = 313839208632.

The previous prime is 641323600417. The next prime is 641323600451. The reversal of 641323600436 is 634006323146.

It is a super-2 number, since 2×641323600436² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 641323600436.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1705647686 + ... + 1705648061.

It is an arithmetic number, because the mean of its divisors is an integer number (95516280944).

Almost surely, 2^641323600436 is an apocalyptic number.

It is an amenable number.

641323600436 is a deficient number, since it is larger than the sum of its proper divisors (504871770892).

641323600436 is a wasteful number, since it uses less digits than its factorization.

641323600436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411295798 (or 3411295796 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 641323600436 in words is "six hundred forty-one billion, three hundred twenty-three million, six hundred thousand, four hundred thirty-six".