6622943421 has 8 divisors (see below), whose sum is σ = 8886837664. Its totient is φ = 4387172400.

The previous prime is 6622943407. The next prime is 6622943429. The reversal of 6622943421 is 1243492266.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6622943421 - 2¹¹ = 6622941373 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6622943421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6622943429) 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, 7030255 + ... + 7031196.

It is an arithmetic number, because the mean of its divisors is an integer number (1110854708).

Almost surely, 2^6622943421 is an apocalyptic number.

It is an amenable number.

6622943421 is a deficient number, since it is larger than the sum of its proper divisors (2263894243).

6622943421 is a wasteful number, since it uses less digits than its factorization.

6622943421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14061611.

The product of its digits is 124416, while the sum is 39.

The square root of 6622943421 is about 81381.4685355333. The cubic root of 6622943421 is about 1877.9485148993.

The spelling of 6622943421 in words is "six billion, six hundred twenty-two million, nine hundred forty-three thousand, four hundred twenty-one".