6649243002 has 24 divisors (see below), whose sum is σ = 15164940960. Its totient is φ = 2099760840.

The previous prime is 6649242991. The next prime is 6649243049. The reversal of 6649243002 is 2003429466.

6649243002 is a `hidden beast` number, since 6 + 649 + 2 + 4 + 3 + 0 + 0 + 2 = 666.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 9720774 + ... + 9721457.

It is an arithmetic number, because the mean of its divisors is an integer number (631872540).

Almost surely, 2^6649243002 is an apocalyptic number.

6649243002 is an abundant number, since it is smaller than the sum of its proper divisors (8515697958).

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

6649243002 is a wasteful number, since it uses less digits than its factorization.

6649243002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19442258 (or 19442255 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 6649243002 is about 81542.8905668667. The cubic root of 6649243002 is about 1880.4309976459.

The spelling of 6649243002 in words is "six billion, six hundred forty-nine million, two hundred forty-three thousand, two".