6460644443 has 16 divisors (see below), whose sum is σ = 7158160896. Its totient is φ = 5781615840.

The previous prime is 6460644427. The next prime is 6460644451. The reversal of 6460644443 is 3444460646.

6460644443 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6460644443 - 2⁴ = 6460644427 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 6460644443.

It is not an unprimeable number, because it can be changed into a prime (6460644473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1688030 + ... + 1691852.

It is an arithmetic number, because the mean of its divisors is an integer number (447385056).

Almost surely, 2^6460644443 is an apocalyptic number.

6460644443 is a deficient number, since it is larger than the sum of its proper divisors (697516453).

6460644443 is a wasteful number, since it uses less digits than its factorization.

6460644443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6194.

The product of its (nonzero) digits is 663552, while the sum is 41.

The square root of 6460644443 is about 80378.1341099680. The cubic root of 6460644443 is about 1862.4814110902.

The spelling of 6460644443 in words is "six billion, four hundred sixty million, six hundred forty-four thousand, four hundred forty-three".