63560564643 has 4 divisors (see below), whose sum is σ = 84747419528. Its totient is φ = 42373709760.

The previous prime is 63560564623. The next prime is 63560564647. The reversal of 63560564643 is 34646506536.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 63560564643 - 2⁸ = 63560564387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63560564592 and 63560564601.

It is not an unprimeable number, because it can be changed into a prime (63560564647) by changing a digit.

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, 10593427438 + ... + 10593427443.

It is an arithmetic number, because the mean of its divisors is an integer number (21186854882).

Almost surely, 2^63560564643 is an apocalyptic number.

63560564643 is a deficient number, since it is larger than the sum of its proper divisors (21186854885).

63560564643 is a wasteful number, since it uses less digits than its factorization.

63560564643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21186854884.

The product of its (nonzero) digits is 4665600, while the sum is 48.

The spelling of 63560564643 in words is "sixty-three billion, five hundred sixty million, five hundred sixty-four thousand, six hundred forty-three".