6216312563 has 4 divisors (see below), whose sum is σ = 6218637360. Its totient is φ = 6213987768.

The previous prime is 6216312533. The next prime is 6216312577. The reversal of 6216312563 is 3652136126.

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

It is a cyclic number.

It is not a de Polignac number, because 6216312563 - 2⁶ = 6216312499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6216312533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1158383 + ... + 1163736.

It is an arithmetic number, because the mean of its divisors is an integer number (1554659340).

Almost surely, 2^6216312563 is an apocalyptic number.

6216312563 is a deficient number, since it is larger than the sum of its proper divisors (2324797).

6216312563 is a wasteful number, since it uses less digits than its factorization.

6216312563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324796.

The product of its digits is 38880, while the sum is 35.

The square root of 6216312563 is about 78843.5955737687. The cubic root of 6216312563 is about 1838.7003033188.

Adding to 6216312563 its reverse (3652136126), we get a palindrome (9868448689).

The spelling of 6216312563 in words is "six billion, two hundred sixteen million, three hundred twelve thousand, five hundred sixty-three".