209389233120 has 192 divisors, whose sum is σ = 662290364736. Its totient is φ = 55607951360.

The previous prime is 209389233103. The next prime is 209389233139. The reversal of 209389233120 is 21332983902.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214318072 + ... + 214319048.

It is an arithmetic number, because the mean of its divisors is an integer number (3449428983).

Almost surely, 2^209389233120 is an apocalyptic number.

209389233120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 209389233120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (331145182368).

209389233120 is an abundant number, since it is smaller than the sum of its proper divisors (452901131616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209389233120 is a wasteful number, since it uses less digits than its factorization.

209389233120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373 (or 2365 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 42.

The spelling of 209389233120 in words is "two hundred nine billion, three hundred eighty-nine million, two hundred thirty-three thousand, one hundred twenty".