6563245283491 has 48 divisors (see below), whose sum is σ = 7724011276800. Its totient is φ = 5528304625536.

The previous prime is 6563245283489. The next prime is 6563245283513. The reversal of 6563245283491 is 1943825423656.

It is a happy number.

It is not a de Polignac number, because 6563245283491 - 2¹ = 6563245283489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6563245283431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86999910 + ... + 87075316.

It is an arithmetic number, because the mean of its divisors is an integer number (160916901600).

Almost surely, 2^{6563245283491} is an apocalyptic number.

6563245283491 is a deficient number, since it is larger than the sum of its proper divisors (1160765993309).

6563245283491 is a wasteful number, since it uses less digits than its factorization.

6563245283491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75916 (or 75887 counting only the distinct ones).

The product of its digits is 37324800, while the sum is 58.

The spelling of 6563245283491 in words is "six trillion, five hundred sixty-three billion, two hundred forty-five million, two hundred eighty-three thousand, four hundred ninety-one".