211848061950 has 288 divisors, whose sum is σ = 674411692032. Its totient is φ = 46654272000.

The previous prime is 211848061949. The next prime is 211848061973. The reversal of 211848061950 is 59160848112.

It is a happy number.

211848061950 is a `hidden beast` number, since 2 + 118 + 480 + 6 + 1 + 9 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 211848061896 and 211848061905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 22747795 + ... + 22757105.

It is an arithmetic number, because the mean of its divisors is an integer number (2341707264).

Almost surely, 2^211848061950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211848061950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337205846016).

211848061950 is an abundant number, since it is smaller than the sum of its proper divisors (462563630082).

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

211848061950 is a wasteful number, since it uses less digits than its factorization.

211848061950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9600 (or 9592 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 45.

The spelling of 211848061950 in words is "two hundred eleven billion, eight hundred forty-eight million, sixty-one thousand, nine hundred fifty".