212766408766 has 8 divisors (see below), whose sum is σ = 319291906824. Its totient is φ = 106335773160.

The previous prime is 212766408739. The next prime is 212766408769. The reversal of 212766408766 is 667804667212.

It is a happy number.

212766408766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212766408769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23710005 + ... + 23718976.

It is an arithmetic number, because the mean of its divisors is an integer number (39911488353).

Almost surely, 2^212766408766 is an apocalyptic number.

212766408766 is a deficient number, since it is larger than the sum of its proper divisors (106525498058).

212766408766 is a wasteful number, since it uses less digits than its factorization.

212766408766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47431226.

The product of its (nonzero) digits is 8128512, while the sum is 55.

The spelling of 212766408766 in words is "two hundred twelve billion, seven hundred sixty-six million, four hundred eight thousand, seven hundred sixty-six".