6463568215 has 64 divisors (see below), whose sum is σ = 9273470976. Its totient is φ = 4276242432.

The previous prime is 6463568213. The next prime is 6463568273. The reversal of 6463568215 is 5128653646.

It is not a de Polignac number, because 6463568215 - 2¹ = 6463568213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6463568213) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6683662 + ... + 6684628.

It is an arithmetic number, because the mean of its divisors is an integer number (144897984).

Almost surely, 2^6463568215 is an apocalyptic number.

6463568215 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6463568215 is a deficient number, since it is larger than the sum of its proper divisors (2809902761).

6463568215 is a wasteful number, since it uses less digits than its factorization.

6463568215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288.

The product of its digits is 1036800, while the sum is 46.

The square root of 6463568215 is about 80396.3196607904. The cubic root of 6463568215 is about 1862.7623247464.

The spelling of 6463568215 in words is "six billion, four hundred sixty-three million, five hundred sixty-eight thousand, two hundred fifteen".