212606859463 has 4 divisors (see below), whose sum is σ = 212611647960. Its totient is φ = 212602070968.

The previous prime is 212606859427. The next prime is 212606859587. The reversal of 212606859463 is 364958606212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212606859463 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212606859463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212606859403) 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 3 ways as a sum of consecutive naturals, for example, 2327020 + ... + 2416657.

It is an arithmetic number, because the mean of its divisors is an integer number (53152911990).

Almost surely, 2^212606859463 is an apocalyptic number.

212606859463 is a deficient number, since it is larger than the sum of its proper divisors (4788497).

212606859463 is an equidigital number, since it uses as much as digits as its factorization.

212606859463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4788496.

The product of its (nonzero) digits is 3732480, while the sum is 52.

The spelling of 212606859463 in words is "two hundred twelve billion, six hundred six million, eight hundred fifty-nine thousand, four hundred sixty-three".