6456240563 has 8 divisors (see below), whose sum is σ = 6479935200. Its totient is φ = 6432578368.

The previous prime is 6456240559. The next prime is 6456240617. The reversal of 6456240563 is 3650426546.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 6456240563 - 2² = 6456240559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6456240563.

It is not an unprimeable number, because it can be changed into a prime (6456240463) 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, 433895 + ... + 448527.

It is an arithmetic number, because the mean of its divisors is an integer number (809991900).

Almost surely, 2^6456240563 is an apocalyptic number.

6456240563 is a deficient number, since it is larger than the sum of its proper divisors (23694637).

6456240563 is a wasteful number, since it uses less digits than its factorization.

6456240563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16221.

The product of its (nonzero) digits is 518400, while the sum is 41.

The square root of 6456240563 is about 80350.7346761683. The cubic root of 6456240563 is about 1862.0581298386.

The spelling of 6456240563 in words is "six billion, four hundred fifty-six million, two hundred forty thousand, five hundred sixty-three".