6306821042 has 8 divisors (see below), whose sum is σ = 9523723500. Its totient is φ = 3132246544.

The previous prime is 6306821033. The next prime is 6306821047. The reversal of 6306821042 is 2401286036.

It can be written as a sum of positive squares in 2 ways, for example, as 5005704001 + 1301117041 = 70751^2 + 36071^2 .

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

It is not an unprimeable number, because it can be changed into a prime (6306821047) 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, 10581617 + ... + 10582212.

Almost surely, 2^6306821042 is an apocalyptic number.

6306821042 is a deficient number, since it is larger than the sum of its proper divisors (3216902458).

6306821042 is a wasteful number, since it uses less digits than its factorization.

6306821042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21163980.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 6306821042 is about 79415.4962334178. The cubic root of 6306821042 is about 1847.5810646922.

The spelling of 6306821042 in words is "six billion, three hundred six million, eight hundred twenty-one thousand, forty-two".