6438528043 has 16 divisors (see below), whose sum is σ = 7064012800. Its totient is φ = 5845530240.

The previous prime is 6438528037. The next prime is 6438528049. The reversal of 6438528043 is 3408258346.

It is an interprime number because it is at equal distance from previous prime (6438528037) and next prime (6438528049).

It is a cyclic number.

It is not a de Polignac number, because 6438528043 - 2⁹ = 6438527531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6438528049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7603 + ... + 113731.

It is an arithmetic number, because the mean of its divisors is an integer number (441500800).

Almost surely, 2^6438528043 is an apocalyptic number.

6438528043 is a deficient number, since it is larger than the sum of its proper divisors (625484757).

6438528043 is a wasteful number, since it uses less digits than its factorization.

6438528043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106282.

The product of its (nonzero) digits is 552960, while the sum is 43.

The square root of 6438528043 is about 80240.4389506937. The cubic root of 6438528043 is about 1860.3537349924.

The spelling of 6438528043 in words is "six billion, four hundred thirty-eight million, five hundred twenty-eight thousand, forty-three".