4644681800206 has 24 divisors (see below), whose sum is σ = 8104573495440. Its totient is φ = 1990558829952.

The previous prime is 4644681800203. The next prime is 4644681800249. The reversal of 4644681800206 is 6020081864464.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 4644681800206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4644681800203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15750391 + ... + 16042573.

It is an arithmetic number, because the mean of its divisors is an integer number (337690562310).

Almost surely, 2^{4644681800206} is an apocalyptic number.

4644681800206 is a deficient number, since it is larger than the sum of its proper divisors (3459891695234).

4644681800206 is a wasteful number, since it uses less digits than its factorization.

4644681800206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454408 (or 454401 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 49.

The spelling of 4644681800206 in words is "four trillion, six hundred forty-four billion, six hundred eighty-one million, eight hundred thousand, two hundred six".