6405000219 has 12 divisors (see below), whose sum is σ = 9286847856. Its totient is φ = 4253762832.

The previous prime is 6405000211. The next prime is 6405000221. The reversal of 6405000219 is 9120005046.

6405000219 is a `hidden beast` number, since 640 + 5 + 0 + 0 + 0 + 2 + 19 = 666.

It is not a de Polignac number, because 6405000219 - 2³ = 6405000211 is a prime.

It is a super-3 number, since 3×6405000219³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 6405000192 and 6405000201.

It is not an unprimeable number, because it can be changed into a prime (6405000211) 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 11 ways as a sum of consecutive naturals, for example, 1350612 + ... + 1355345.

It is an arithmetic number, because the mean of its divisors is an integer number (773903988).

Almost surely, 2^6405000219 is an apocalyptic number.

6405000219 is a deficient number, since it is larger than the sum of its proper divisors (2881847637).

6405000219 is a wasteful number, since it uses less digits than its factorization.

6405000219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706226 (or 2706223 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 6405000219 is about 80031.2452670830. The cubic root of 6405000219 is about 1857.1189275916.

The spelling of 6405000219 in words is "six billion, four hundred five million, two hundred nineteen", and thus it is an aban number.