6789408163 has 6 divisors (see below), whose sum is σ = 6857305892. Its totient is φ = 6722176200.

The previous prime is 6789408139. The next prime is 6789408169. The reversal of 6789408163 is 3618049876.

It is a happy number.

It is not a de Polignac number, because 6789408163 - 2¹³ = 6789399971 is a prime.

It is a super-2 number, since 2×6789408163² = 92192126407622069138, which contains 22 as substring.

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 6789408163.

It is not an unprimeable number, because it can be changed into a prime (6789408169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 322581 + ... + 342982.

Almost surely, 2^6789408163 is an apocalyptic number.

6789408163 is a deficient number, since it is larger than the sum of its proper divisors (67897729).

6789408163 is an equidigital number, since it uses as much as digits as its factorization.

6789408163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665765 (or 665664 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 6789408163 is about 82397.8650390895. The cubic root of 6789408163 is about 1893.5523052887.

The spelling of 6789408163 in words is "six billion, seven hundred eighty-nine million, four hundred eight thousand, one hundred sixty-three".