6643914312 has 48 divisors (see below), whose sum is σ = 19321590960. Its totient is φ = 1898260896.

The previous prime is 6643914283. The next prime is 6643914323. The reversal of 6643914312 is 2134193466.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2823618 + ... + 2825969.

It is an arithmetic number, because the mean of its divisors is an integer number (402533145).

Almost surely, 2^6643914312 is an apocalyptic number.

It is an amenable number.

6643914312 is an abundant number, since it is smaller than the sum of its proper divisors (12677676648).

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

6643914312 is a wasteful number, since it uses less digits than its factorization.

6643914312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5649610 (or 5649599 counting only the distinct ones).

The product of its digits is 93312, while the sum is 39.

The square root of 6643914312 is about 81510.2098635502. The cubic root of 6643914312 is about 1879.9285388561.

The spelling of 6643914312 in words is "six billion, six hundred forty-three million, nine hundred fourteen thousand, three hundred twelve".