5641634563 has 8 divisors (see below), whose sum is σ = 5780391120. Its totient is φ = 5502933120.

The previous prime is 5641634521. The next prime is 5641634573. The reversal of 5641634563 is 3654361465.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5641634563 - 2²¹ = 5639537411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5641634573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258856 + ... + 279802.

It is an arithmetic number, because the mean of its divisors is an integer number (722548890).

Almost surely, 2^5641634563 is an apocalyptic number.

5641634563 is a deficient number, since it is larger than the sum of its proper divisors (138756557).

5641634563 is a wasteful number, since it uses less digits than its factorization.

5641634563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27557.

The product of its digits is 777600, while the sum is 43.

The square root of 5641634563 is about 75110.8152199136. The cubic root of 5641634563 is about 1780.1980340835.

The spelling of 5641634563 in words is "five billion, six hundred forty-one million, six hundred thirty-four thousand, five hundred sixty-three".