6460563917 has 8 divisors (see below), whose sum is σ = 6493491576. Its totient is φ = 6427697152.

The previous prime is 6460563913. The next prime is 6460563919. The reversal of 6460563917 is 7193650646.

It can be written as a sum of positive squares in 4 ways, for example, as 5370837796 + 1089726121 = 73286^2 + 33011^2 .

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 6460563917 - 2² = 6460563913 is a prime.

It is a super-2 number, since 2×6460563917² = 83477772251284765778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6460563913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205583 + ... + 234915.

It is an arithmetic number, because the mean of its divisors is an integer number (811686447).

Almost surely, 2^6460563917 is an apocalyptic number.

It is an amenable number.

6460563917 is a deficient number, since it is larger than the sum of its proper divisors (32927659).

6460563917 is a wasteful number, since it uses less digits than its factorization.

6460563917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30447.

The product of its (nonzero) digits is 816480, while the sum is 47.

The square root of 6460563917 is about 80377.6331885930. The cubic root of 6460563917 is about 1862.4736730179.

The spelling of 6460563917 in words is "six billion, four hundred sixty million, five hundred sixty-three thousand, nine hundred seventeen".