211483427866 has 4 divisors (see below), whose sum is σ = 317225141802. Its totient is φ = 105741713932.

The previous prime is 211483427849. The next prime is 211483427873. The reversal of 211483427866 is 668724384112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 165742623225 + 45740804641 = 407115^2 + 213871^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52870856965 + ... + 52870856968.

Almost surely, 2^211483427866 is an apocalyptic number.

211483427866 is a deficient number, since it is larger than the sum of its proper divisors (105741713936).

211483427866 is a wasteful number, since it uses less digits than its factorization.

211483427866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105741713935.

The product of its digits is 3096576, while the sum is 52.

The spelling of 211483427866 in words is "two hundred eleven billion, four hundred eighty-three million, four hundred twenty-seven thousand, eight hundred sixty-six".