211280991296 has 112 divisors (see below), whose sum is σ = 439696555200. Its totient is φ = 100596099072.

The previous prime is 211280991293. The next prime is 211280991323. The reversal of 211280991296 is 692199082112.

It is not an unprimeable number, because it can be changed into a prime (211280991293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164676671 + ... + 164677953.

It is an arithmetic number, because the mean of its divisors is an integer number (3925862100).

Almost surely, 2^211280991296 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 211280991296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219848277600).

211280991296 is an abundant number, since it is smaller than the sum of its proper divisors (228415563904).

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

211280991296 is a wasteful number, since it uses less digits than its factorization.

211280991296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2476 (or 2466 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 50.

The spelling of 211280991296 in words is "two hundred eleven billion, two hundred eighty million, nine hundred ninety-one thousand, two hundred ninety-six".