641042445412 has 6 divisors (see below), whose sum is σ = 1121824279478. Its totient is φ = 320521222704.

The previous prime is 641042445299. The next prime is 641042445413. The reversal of 641042445412 is 214544240146.

It can be written as a sum of positive squares in only one way, i.e., 553619331136 + 87423114276 = 744056^2 + 295674^2 .

It is not an unprimeable number, because it can be changed into a prime (641042445413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80130305673 + ... + 80130305680.

Almost surely, 2^641042445412 is an apocalyptic number.

It is an amenable number.

641042445412 is a deficient number, since it is larger than the sum of its proper divisors (480781834066).

641042445412 is a wasteful number, since it uses less digits than its factorization.

641042445412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160260611357 (or 160260611355 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 37.

Adding to 641042445412 its reverse (214544240146), we get a palindrome (855586685558).

The spelling of 641042445412 in words is "six hundred forty-one billion, forty-two million, four hundred forty-five thousand, four hundred twelve".