211845873448 has 64 divisors (see below), whose sum is σ = 437443776000. Its totient is φ = 95380632000.

The previous prime is 211845873419. The next prime is 211845873467. The reversal of 211845873448 is 844378548112.

It is a happy number.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5350123 + ... + 5389573.

It is an arithmetic number, because the mean of its divisors is an integer number (6835059000).

Almost surely, 2^211845873448 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 211845873448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218721888000).

211845873448 is an abundant number, since it is smaller than the sum of its proper divisors (225597902552).

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

211845873448 is a wasteful number, since it uses less digits than its factorization.

211845873448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40046 (or 40042 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 55.

The spelling of 211845873448 in words is "two hundred eleven billion, eight hundred forty-five million, eight hundred seventy-three thousand, four hundred forty-eight".