6428818244 has 12 divisors (see below), whose sum is σ = 11283818364. Its totient is φ = 3204870144.

The previous prime is 6428818241. The next prime is 6428818267. The reversal of 6428818244 is 4428188246.

It can be written as a sum of positive squares in 2 ways, for example, as 3565284100 + 2863534144 = 59710^2 + 53512^2 .

It is not an unprimeable number, because it can be changed into a prime (6428818241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2383229 + ... + 2385924.

It is an arithmetic number, because the mean of its divisors is an integer number (940318197).

Almost surely, 2^6428818244 is an apocalyptic number.

It is an amenable number.

6428818244 is a deficient number, since it is larger than the sum of its proper divisors (4855000120).

6428818244 is a wasteful number, since it uses less digits than its factorization.

6428818244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4769494 (or 4769492 counting only the distinct ones).

The product of its digits is 786432, while the sum is 47.

The square root of 6428818244 is about 80179.9117235733. The cubic root of 6428818244 is about 1859.4180786438.

The spelling of 6428818244 in words is "six billion, four hundred twenty-eight million, eight hundred eighteen thousand, two hundred forty-four".