6563514768 has 80 divisors (see below), whose sum is σ = 17966707200. Its totient is φ = 2057586688.

The previous prime is 6563514733. The next prime is 6563514781. The reversal of 6563514768 is 8674153656.

It is a super-2 number, since 2×6563514768² = 86159452219508187648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 6563514768.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588321 + ... + 1592447.

It is an arithmetic number, because the mean of its divisors is an integer number (224583840).

Almost surely, 2^6563514768 is an apocalyptic number.

6563514768 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6563514768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8983353600).

6563514768 is an abundant number, since it is smaller than the sum of its proper divisors (11403192432).

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

6563514768 is a wasteful number, since it uses less digits than its factorization.

6563514768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104 (or 6098 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The square root of 6563514768 is about 81015.5217720654. The cubic root of 6563514768 is about 1872.3145930127.

The spelling of 6563514768 in words is "six billion, five hundred sixty-three million, five hundred fourteen thousand, seven hundred sixty-eight".