6721614244 has 24 divisors (see below), whose sum is σ = 11832912000. Its totient is φ = 3340814400.

The previous prime is 6721614223. The next prime is 6721614247. The reversal of 6721614244 is 4424161276.

It is not an unprimeable number, because it can be changed into a prime (6721614247) 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, 1022769 + ... + 1029319.

It is an arithmetic number, because the mean of its divisors is an integer number (493038000).

Almost surely, 2^6721614244 is an apocalyptic number.

It is an amenable number.

6721614244 is a deficient number, since it is larger than the sum of its proper divisors (5111297756).

6721614244 is a wasteful number, since it uses less digits than its factorization.

6721614244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8043 (or 8041 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 6721614244 is about 81985.4514166995. The cubic root of 6721614244 is about 1887.2286814023.

The spelling of 6721614244 in words is "six billion, seven hundred twenty-one million, six hundred fourteen thousand, two hundred forty-four".