563979657385 has 4 divisors (see below), whose sum is σ = 676775588868. Its totient is φ = 451183725904.

The previous prime is 563979657323. The next prime is 563979657389. The reversal of 563979657385 is 583756979365.

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

It can be written as a sum of positive squares in 2 ways, for example, as 213648252841 + 350331404544 = 462221^2 + 591888^2 .

It is a cyclic number.

It is not a de Polignac number, because 563979657385 - 2¹⁵ = 563979624617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (563979657389) 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, 56397965734 + ... + 56397965743.

It is an arithmetic number, because the mean of its divisors is an integer number (169193897217).

Almost surely, 2^563979657385 is an apocalyptic number.

It is an amenable number.

563979657385 is a deficient number, since it is larger than the sum of its proper divisors (112795931483).

563979657385 is a wasteful number, since it uses less digits than its factorization.

563979657385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112795931482.

The product of its digits is 1285956000, while the sum is 73.

The spelling of 563979657385 in words is "five hundred sixty-three billion, nine hundred seventy-nine million, six hundred fifty-seven thousand, three hundred eighty-five".