63608428805 has 8 divisors (see below), whose sum is σ = 76369614072. Its totient is φ = 50860410048.

The previous prime is 63608428801. The next prime is 63608428847. The reversal of 63608428805 is 50882480636.

It can be written as a sum of positive squares in 4 ways, for example, as 20662912516 + 42945516289 = 143746^2 + 207233^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63608428805 - 2² = 63608428801 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63608428801) 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, 3280994 + ... + 3300323.

It is an arithmetic number, because the mean of its divisors is an integer number (9546201759).

Almost surely, 2^63608428805 is an apocalyptic number.

It is an amenable number.

63608428805 is a deficient number, since it is larger than the sum of its proper divisors (12761185267).

63608428805 is a wasteful number, since it uses less digits than its factorization.

63608428805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6583255.

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 63608428805 in words is "sixty-three billion, six hundred eight million, four hundred twenty-eight thousand, eight hundred five".