209268620084 has 12 divisors (see below), whose sum is σ = 366293820900. Its totient is φ = 104613242688.

The previous prime is 209268620069. The next prime is 209268620089. The reversal of 209268620084 is 480026862902.

209268620084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 110815752100 + 98452867984 = 332890^2 + 313772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209268620089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5244479 + ... + 5284230.

It is an arithmetic number, because the mean of its divisors is an integer number (30524485075).

Almost surely, 2^209268620084 is an apocalyptic number.

It is an amenable number.

209268620084 is a deficient number, since it is larger than the sum of its proper divisors (157025200816).

209268620084 is a wasteful number, since it uses less digits than its factorization.

209268620084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10533682 (or 10533680 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 209268620084 in words is "two hundred nine billion, two hundred sixty-eight million, six hundred twenty thousand, eighty-four".