211076668818 has 24 divisors (see below), whose sum is σ = 457344014556. Its totient is φ = 70357161600.

The previous prime is 211076668813. The next prime is 211076668823. The reversal of 211076668818 is 818866670112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211076668813) and next prime (211076668823).

It can be written as a sum of positive squares in 2 ways, for example, as 184687641009 + 26389027809 = 429753^2 + 162447^2 .

It is not an unprimeable number, because it can be changed into a prime (211076668813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 763998 + ... + 1002918.

Almost surely, 2^211076668818 is an apocalyptic number.

211076668818 is an abundant number, since it is smaller than the sum of its proper divisors (246267345738).

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

211076668818 is a wasteful number, since it uses less digits than its factorization.

211076668818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288010 (or 288007 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The spelling of 211076668818 in words is "two hundred eleven billion, seventy-six million, six hundred sixty-eight thousand, eight hundred eighteen".