6658434893 has 4 divisors (see below), whose sum is σ = 7263747168. Its totient is φ = 6053122620.

The previous prime is 6658434847. The next prime is 6658434907. The reversal of 6658434893 is 3984348566.

It is a happy number.

6658434893 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6658434893 - 2⁸ = 6658434637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6658434823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302656121 + ... + 302656142.

It is an arithmetic number, because the mean of its divisors is an integer number (1815936792).

Almost surely, 2^6658434893 is an apocalyptic number.

It is an amenable number.

6658434893 is a deficient number, since it is larger than the sum of its proper divisors (605312275).

6658434893 is a wasteful number, since it uses less digits than its factorization.

6658434893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605312274.

The product of its digits is 14929920, while the sum is 56.

The square root of 6658434893 is about 81599.2334093893. The cubic root of 6658434893 is about 1881.2970991501.

The spelling of 6658434893 in words is "six billion, six hundred fifty-eight million, four hundred thirty-four thousand, eight hundred ninety-three".