6563963383 has 4 divisors (see below), whose sum is σ = 6909435160. Its totient is φ = 6218491608.

The previous prime is 6563963369. The next prime is 6563963423. The reversal of 6563963383 is 3833693656.

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

It is not a de Polignac number, because 6563963383 - 2²¹ = 6561866231 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6563963383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6563963303) 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, 172735860 + ... + 172735897.

It is an arithmetic number, because the mean of its divisors is an integer number (1727358790).

Almost surely, 2^6563963383 is an apocalyptic number.

6563963383 is a deficient number, since it is larger than the sum of its proper divisors (345471777).

6563963383 is a wasteful number, since it uses less digits than its factorization.

6563963383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345471776.

The product of its digits is 6298560, while the sum is 52.

The square root of 6563963383 is about 81018.2904225953. The cubic root of 6563963383 is about 1872.3572494909.

The spelling of 6563963383 in words is "six billion, five hundred sixty-three million, nine hundred sixty-three thousand, three hundred eighty-three".