6463653243 has 8 divisors (see below), whose sum is σ = 8622378000. Its totient is φ = 4307015328.

The previous prime is 6463653221. The next prime is 6463653253. The reversal of 6463653243 is 3423563646.

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

It is not a de Polignac number, because 6463653243 - 2²⁴ = 6446876027 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 6463653195 and 6463653204.

It is not an unprimeable number, because it can be changed into a prime (6463653253) 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, 514468 + ... + 526881.

It is an arithmetic number, because the mean of its divisors is an integer number (1077797250).

Almost surely, 2^6463653243 is an apocalyptic number.

6463653243 is a deficient number, since it is larger than the sum of its proper divisors (2158724757).

6463653243 is a wasteful number, since it uses less digits than its factorization.

6463653243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043421.

The product of its digits is 933120, while the sum is 42.

The square root of 6463653243 is about 80396.8484643521. The cubic root of 6463653243 is about 1862.7704929004.

The spelling of 6463653243 in words is "six billion, four hundred sixty-three million, six hundred fifty-three thousand, two hundred forty-three".