211773115792 has 80 divisors (see below), whose sum is σ = 484741196800. Its totient is φ = 87707266560.

The previous prime is 211773115769. The next prime is 211773115837. The reversal of 211773115792 is 297511377112.

211773115792 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2418634 + ... + 2504662.

It is an arithmetic number, because the mean of its divisors is an integer number (6059264960).

Almost surely, 2^211773115792 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 211773115792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242370598400).

211773115792 is an abundant number, since it is smaller than the sum of its proper divisors (272968081008).

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

211773115792 is a wasteful number, since it uses less digits than its factorization.

211773115792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86784 (or 86778 counting only the distinct ones).

The product of its digits is 185220, while the sum is 46.

The spelling of 211773115792 in words is "two hundred eleven billion, seven hundred seventy-three million, one hundred fifteen thousand, seven hundred ninety-two".