6443820231 has 8 divisors (see below), whose sum is σ = 8965315200. Its totient is φ = 4109102712.

The previous prime is 6443820221. The next prime is 6443820259. The reversal of 6443820231 is 1320283446.

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

It is not a de Polignac number, because 6443820231 - 2⁶ = 6443820167 is a prime.

It is a super-2 number, since 2×6443820231² = 83045638338889786722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6443820192 and 6443820201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6443820221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46694281 + ... + 46694418.

It is an arithmetic number, because the mean of its divisors is an integer number (1120664400).

Almost surely, 2^6443820231 is an apocalyptic number.

6443820231 is a deficient number, since it is larger than the sum of its proper divisors (2521494969).

6443820231 is a wasteful number, since it uses less digits than its factorization.

6443820231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93388725.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 6443820231 is about 80273.4092399220. The cubic root of 6443820231 is about 1860.8633051611.

The spelling of 6443820231 in words is "six billion, four hundred forty-three million, eight hundred twenty thousand, two hundred thirty-one".