6649012830 has 16 divisors (see below), whose sum is σ = 15957630864. Its totient is φ = 1773070080.

The previous prime is 6649012819. The next prime is 6649012861. The reversal of 6649012830 is 382109466.

It is a super-2 number, since 2×6649012830² = 88418743227009217800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110816851 + ... + 110816910.

It is an arithmetic number, because the mean of its divisors is an integer number (997351929).

Almost surely, 2^6649012830 is an apocalyptic number.

6649012830 is an abundant number, since it is smaller than the sum of its proper divisors (9308618034).

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

6649012830 is a wasteful number, since it uses less digits than its factorization.

6649012830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221633771.

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 6649012830 is about 81541.4791992395. The cubic root of 6649012830 is about 1880.4092995590.

The spelling of 6649012830 in words is "six billion, six hundred forty-nine million, twelve thousand, eight hundred thirty".