6563481723 has 6 divisors (see below), whose sum is σ = 9480584724. Its totient is φ = 4375654476.

The previous prime is 6563481707. The next prime is 6563481739. The reversal of 6563481723 is 3271843656.

6563481723 is a `hidden beast` number, since 6 + 5 + 634 + 8 + 1 + 7 + 2 + 3 = 666.

6563481723 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (6563481707) and next prime (6563481739).

It is not a de Polignac number, because 6563481723 - 2⁴ = 6563481707 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6563481523) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 364637865 + ... + 364637882.

It is an arithmetic number, because the mean of its divisors is an integer number (1580097454).

Almost surely, 2^6563481723 is an apocalyptic number.

6563481723 is a deficient number, since it is larger than the sum of its proper divisors (2917103001).

6563481723 is a wasteful number, since it uses less digits than its factorization.

6563481723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729275753 (or 729275750 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 6563481723 is about 81015.3178294080. The cubic root of 6563481723 is about 1872.3114508578.

The spelling of 6563481723 in words is "six billion, five hundred sixty-three million, four hundred eighty-one thousand, seven hundred twenty-three".