209272163480832 has 288 divisors, whose sum is σ = 587806814044800. Its totient is φ = 65914385596416.

The previous prime is 209272163480819. The next prime is 209272163480929. The reversal of 209272163480832 is 238084361272902.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13020097948 + ... + 13020114020.

It is an arithmetic number, because the mean of its divisors is an integer number (2040995882100).

Almost surely, 2^{209272163480832} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 209272163480832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293903407022400).

209272163480832 is an abundant number, since it is smaller than the sum of its proper divisors (378534650563968).

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

209272163480832 is a wasteful number, since it uses less digits than its factorization.

209272163480832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18373 (or 18359 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 57.

The spelling of 209272163480832 in words is "two hundred nine trillion, two hundred seventy-two billion, one hundred sixty-three million, four hundred eighty thousand, eight hundred thirty-two".