641410444636 has 24 divisors (see below), whose sum is σ = 1209456188640. Its totient is φ = 295877827392.

The previous prime is 641410444603. The next prime is 641410444637. The reversal of 641410444636 is 636444014146.

641410444636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×641410444636² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641410444592 and 641410444601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641410444637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3188176 + ... + 3383383.

It is an arithmetic number, because the mean of its divisors is an integer number (50394007860).

Almost surely, 2^641410444636 is an apocalyptic number.

It is an amenable number.

641410444636 is a deficient number, since it is larger than the sum of its proper divisors (568045744004).

641410444636 is a wasteful number, since it uses less digits than its factorization.

641410444636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573453 (or 6573451 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 43.

The spelling of 641410444636 in words is "six hundred forty-one billion, four hundred ten million, four hundred forty-four thousand, six hundred thirty-six".