6658838838 has 48 divisors (see below), whose sum is σ = 15195289200. Its totient is φ = 2101619520.

The previous prime is 6658838833. The next prime is 6658838839. The reversal of 6658838838 is 8388388566.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6658838833) 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 23 ways as a sum of consecutive naturals, for example, 771708 + ... + 780288.

It is an arithmetic number, because the mean of its divisors is an integer number (316568525).

Almost surely, 2^6658838838 is an apocalyptic number.

6658838838 is an abundant number, since it is smaller than the sum of its proper divisors (8536450362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6658838838 is a wasteful number, since it uses less digits than its factorization.

6658838838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10877 (or 10874 counting only the distinct ones).

The product of its digits is 53084160, while the sum is 63.

The square root of 6658838838 is about 81601.7085482896. The cubic root of 6658838838 is about 1881.3351423841.

The spelling of 6658838838 in words is "six billion, six hundred fifty-eight million, eight hundred thirty-eight thousand, eight hundred thirty-eight".