211026309376 has 27 divisors (see below), whose sum is σ = 421242969063. Its totient is φ = 105509479680.

The previous prime is 211026309371. The next prime is 211026309391. The reversal of 211026309376 is 673903620112.

It is a happy number.

The square root of 211026309376 is 459376.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211026309371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7335661 + ... + 7364371.

Almost surely, 2^211026309376 is an apocalyptic number.

211026309376 is the 459376-th square number.

It is an amenable number.

211026309376 is a deficient number, since it is larger than the sum of its proper divisors (210216659687).

211026309376 is an frugal number, since it uses more digits than its factorization.

211026309376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57438 (or 28713 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 40.

Adding to 211026309376 its reverse (673903620112), we get a palindrome (884929929488).

The spelling of 211026309376 in words is "two hundred eleven billion, twenty-six million, three hundred nine thousand, three hundred seventy-six".