211109823848 has 192 divisors, whose sum is σ = 509807088000. Its totient is φ = 81859008000.

The previous prime is 211109823811. The next prime is 211109823887. The reversal of 211109823848 is 848328901112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 75368048 + ... + 75370848.

It is an arithmetic number, because the mean of its divisors is an integer number (2655245250).

Almost surely, 2^211109823848 is an apocalyptic number.

211109823848 is a gapful number since it is divisible by the number (28) 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 211109823848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254903544000).

211109823848 is an abundant number, since it is smaller than the sum of its proper divisors (298697264152).

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

211109823848 is a wasteful number, since it uses less digits than its factorization.

211109823848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077 (or 3048 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 47.

The spelling of 211109823848 in words is "two hundred eleven billion, one hundred nine million, eight hundred twenty-three thousand, eight hundred forty-eight".