6481217013 has 4 divisors (see below), whose sum is σ = 8641622688. Its totient is φ = 4320811340.

The previous prime is 6481216997. The next prime is 6481217021. The reversal of 6481217013 is 3107121846.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6481217013 - 2⁴ = 6481216997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6481227013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1080202833 + ... + 1080202838.

It is an arithmetic number, because the mean of its divisors is an integer number (2160405672).

Almost surely, 2^6481217013 is an apocalyptic number.

It is an amenable number.

6481217013 is a deficient number, since it is larger than the sum of its proper divisors (2160405675).

6481217013 is a wasteful number, since it uses less digits than its factorization.

6481217013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160405674.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 6481217013 is about 80506.0060678705. The cubic root of 6481217013 is about 1864.4562105365.

Adding to 6481217013 its reverse (3107121846), we get a palindrome (9588338859).

The spelling of 6481217013 in words is "six billion, four hundred eighty-one million, two hundred seventeen thousand, thirteen".