6643234049 has 8 divisors (see below), whose sum is σ = 7035535680. Its totient is φ = 6259554576.

The previous prime is 6643234027. The next prime is 6643234069. The reversal of 6643234049 is 9404323466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6643234049 - 2¹² = 6643229953 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6643233997 and 6643234015.

It is not an unprimeable number, because it can be changed into a prime (6643234019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2153954 + ... + 2157035.

It is an arithmetic number, because the mean of its divisors is an integer number (879441960).

Almost surely, 2^6643234049 is an apocalyptic number.

It is an amenable number.

6643234049 is a deficient number, since it is larger than the sum of its proper divisors (392301631).

6643234049 is a wasteful number, since it uses less digits than its factorization.

6643234049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311079.

The product of its (nonzero) digits is 373248, while the sum is 41.

The square root of 6643234049 is about 81506.0368868466. The cubic root of 6643234049 is about 1879.8643754018.

The spelling of 6643234049 in words is "six billion, six hundred forty-three million, two hundred thirty-four thousand, forty-nine".