209312828373 has 32 divisors (see below), whose sum is σ = 315030643200. Its totient is φ = 122451896000.

The previous prime is 209312828357. The next prime is 209312828381. The reversal of 209312828373 is 373828213902.

It is a cyclic number.

It is not a de Polignac number, because 209312828373 - 2⁴ = 209312828357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (209312828383) 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 31 ways as a sum of consecutive naturals, for example, 4235038 + ... + 4284176.

It is an arithmetic number, because the mean of its divisors is an integer number (9844707600).

Almost surely, 2^209312828373 is an apocalyptic number.

It is an amenable number.

209312828373 is a deficient number, since it is larger than the sum of its proper divisors (105717814827).

209312828373 is a wasteful number, since it uses less digits than its factorization.

209312828373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53633.

The product of its (nonzero) digits is 870912, while the sum is 48.

The spelling of 209312828373 in words is "two hundred nine billion, three hundred twelve million, eight hundred twenty-eight thousand, three hundred seventy-three".