211886830760 has 128 divisors (see below), whose sum is σ = 545599929600. Its totient is φ = 73344768000.

The previous prime is 211886830697. The next prime is 211886830781. The reversal of 211886830760 is 67038688112.

It is a junction number, because it is equal to n+sod(n) for n = 211886830699 and 211886830708.

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 31 ways as a sum of consecutive naturals, for example, 789020 + ... + 1022900.

It is an arithmetic number, because the mean of its divisors is an integer number (4262499450).

Almost surely, 2^211886830760 is an apocalyptic number.

211886830760 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 211886830760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272799964800).

211886830760 is an abundant number, since it is smaller than the sum of its proper divisors (333713098840).

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

211886830760 is a wasteful number, since it uses less digits than its factorization.

211886830760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234003 (or 233999 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 50.

The spelling of 211886830760 in words is "two hundred eleven billion, eight hundred eighty-six million, eight hundred thirty thousand, seven hundred sixty".