63125628209 has 16 divisors (see below), whose sum is σ = 73147401600. Its totient is φ = 53355127680.

The previous prime is 63125628191. The next prime is 63125628211. The reversal of 63125628209 is 90282652136.

It is not a de Polignac number, because 63125628209 - 2⁸ = 63125627953 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 63125628209.

It is not an unprimeable number, because it can be changed into a prime (63125628289) 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 in 15 ways as a sum of consecutive naturals, for example, 3122867 + ... + 3143015.

It is an arithmetic number, because the mean of its divisors is an integer number (4571712600).

Almost surely, 2^63125628209 is an apocalyptic number.

It is an amenable number.

63125628209 is a deficient number, since it is larger than the sum of its proper divisors (10021773391).

63125628209 is a wasteful number, since it uses less digits than its factorization.

63125628209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26360.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 63125628209 in words is "sixty-three billion, one hundred twenty-five million, six hundred twenty-eight thousand, two hundred nine".