563623263420 has 144 divisors (see below), whose sum is σ = 1836101665440. Its totient is φ = 128807110656.

The previous prime is 563623263419. The next prime is 563623263439. The reversal of 563623263420 is 24362326365.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 24475752 + ... + 24498768.

It is an arithmetic number, because the mean of its divisors is an integer number (12750706010).

Almost surely, 2^563623263420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 563623263420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (918050832720).

563623263420 is an abundant number, since it is smaller than the sum of its proper divisors (1272478402020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

563623263420 is a wasteful number, since it uses less digits than its factorization.

563623263420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31372 (or 31363 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 42.

Adding to 563623263420 its reverse (24362326365), we get a palindrome (587985589785).

The spelling of 563623263420 in words is "five hundred sixty-three billion, six hundred twenty-three million, two hundred sixty-three thousand, four hundred twenty".