6456822189 has 16 divisors (see below), whose sum is σ = 8973961920. Its totient is φ = 4124382080.

The previous prime is 6456822179. The next prime is 6456822191. The reversal of 6456822189 is 9812286546.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 6456822189 - 2⁵ = 6456822157 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6456822179) 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, 271872 + ... + 294665.

It is an arithmetic number, because the mean of its divisors is an integer number (560872620).

Almost surely, 2^6456822189 is an apocalyptic number.

It is an amenable number.

6456822189 is a deficient number, since it is larger than the sum of its proper divisors (2517139731).

6456822189 is a wasteful number, since it uses less digits than its factorization.

6456822189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566700.

The product of its digits is 1658880, while the sum is 51.

The square root of 6456822189 is about 80354.3538895062. The cubic root of 6456822189 is about 1862.1140441585.

The spelling of 6456822189 in words is "six billion, four hundred fifty-six million, eight hundred twenty-two thousand, one hundred eighty-nine".