6638000835 has 32 divisors (see below), whose sum is σ = 11185493760. Its totient is φ = 3352226688.

The previous prime is 6638000777. The next prime is 6638000869. The reversal of 6638000835 is 5380008366.

It is not a de Polignac number, because 6638000835 - 2¹⁰ = 6637999811 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6638000793 and 6638000802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 701244 + ... + 710646.

It is an arithmetic number, because the mean of its divisors is an integer number (349546680).

Almost surely, 2^6638000835 is an apocalyptic number.

6638000835 is a deficient number, since it is larger than the sum of its proper divisors (4547492925).

6638000835 is a wasteful number, since it uses less digits than its factorization.

With its successor (6638000836) it forms an eRAP, since the sums of their prime factors are consecutive (11907 and 11908).

6638000835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11907.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 6638000835 is about 81473.9273326136. The cubic root of 6638000835 is about 1879.3706240725.

The spelling of 6638000835 in words is "six billion, six hundred thirty-eight million, eight hundred thirty-five", and thus it is an aban number.