6442855001 has 16 divisors (see below), whose sum is σ = 7080953280. Its totient is φ = 5813570880.

The previous prime is 6442854959. The next prime is 6442855031. The reversal of 6442855001 is 1005582446.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6442855001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6442855031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2518415 + ... + 2520971.

It is an arithmetic number, because the mean of its divisors is an integer number (442559580).

Almost surely, 2^6442855001 is an apocalyptic number.

It is an amenable number.

6442855001 is a deficient number, since it is larger than the sum of its proper divisors (638098279).

6442855001 is a wasteful number, since it uses less digits than its factorization.

6442855001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4184.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 6442855001 is about 80267.3968744471. The cubic root of 6442855001 is about 1860.7703866379.

The spelling of 6442855001 in words is "six billion, four hundred forty-two million, eight hundred fifty-five thousand, one".