211750906896 has 135 divisors (see below), whose sum is σ = 612836921853. Its totient is φ = 68251524480.

The previous prime is 211750906879. The next prime is 211750906901. The reversal of 211750906896 is 698609057112.

The square root of 211750906896 is 460164.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 159920010000 + 51830896896 = 399900^2 + 227664^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 171180390 + ... + 171181626.

Almost surely, 2^211750906896 is an apocalyptic number.

211750906896 is the 460164-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211750906896

211750906896 is an abundant number, since it is smaller than the sum of its proper divisors (401086014957).

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

211750906896 is an equidigital number, since it uses as much as digits as its factorization.

211750906896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2550 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 54.

The spelling of 211750906896 in words is "two hundred eleven billion, seven hundred fifty million, nine hundred six thousand, eight hundred ninety-six".