6444655463 has 8 divisors (see below), whose sum is σ = 6606256320. Its totient is φ = 6284074720.

The previous prime is 6444655447. The next prime is 6444655493. The reversal of 6444655463 is 3645564446.

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 6444655463 - 2⁴ = 6444655447 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6444655493) 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, 242228 + ... + 267513.

It is an arithmetic number, because the mean of its divisors is an integer number (825782040).

Almost surely, 2^6444655463 is an apocalyptic number.

6444655463 is a deficient number, since it is larger than the sum of its proper divisors (161600857).

6444655463 is a wasteful number, since it uses less digits than its factorization.

6444655463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510057.

The product of its digits is 4147200, while the sum is 47.

The square root of 6444655463 is about 80278.6114914801. The cubic root of 6444655463 is about 1860.9437018500.

The spelling of 6444655463 in words is "six billion, four hundred forty-four million, six hundred fifty-five thousand, four hundred sixty-three".