6639467212 has 24 divisors (see below), whose sum is σ = 13284472320. Its totient is φ = 2844299280.

The previous prime is 6639467167. The next prime is 6639467213. The reversal of 6639467212 is 2127649366.

It is not an unprimeable number, because it can be changed into a prime (6639467213) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20637 + ... + 117067.

It is an arithmetic number, because the mean of its divisors is an integer number (553519680).

Almost surely, 2^6639467212 is an apocalyptic number.

It is an amenable number.

6639467212 is an abundant number, since it is smaller than the sum of its proper divisors (6645005108).

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

6639467212 is a wasteful number, since it uses less digits than its factorization.

6639467212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98901 (or 98899 counting only the distinct ones).

The product of its digits is 653184, while the sum is 46.

The square root of 6639467212 is about 81482.9258924838. The cubic root of 6639467212 is about 1879.5090022289.

It can be divided in two parts, 6639 and 467212, that added together give a triangular number (473851 = T₉₇₃).

The spelling of 6639467212 in words is "six billion, six hundred thirty-nine million, four hundred sixty-seven thousand, two hundred twelve".