6447616422 has 16 divisors (see below), whose sum is σ = 13887174000. Its totient is φ = 1983881952.

The previous prime is 6447616421. The next prime is 6447616433. The reversal of 6447616422 is 2246167446.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6447616421) 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, 41330797 + ... + 41330952.

It is an arithmetic number, because the mean of its divisors is an integer number (867948375).

Almost surely, 2^6447616422 is an apocalyptic number.

6447616422 is an abundant number, since it is smaller than the sum of its proper divisors (7439557578).

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

6447616422 is a wasteful number, since it uses less digits than its factorization.

6447616422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82661767.

The product of its digits is 387072, while the sum is 42.

The square root of 6447616422 is about 80297.0511413713. The cubic root of 6447616422 is about 1861.2286580889.

The spelling of 6447616422 in words is "six billion, four hundred forty-seven million, six hundred sixteen thousand, four hundred twenty-two".