212808684734 has 8 divisors (see below), whose sum is σ = 319283678640. Its totient is φ = 106380791856.

The previous prime is 212808684727. The next prime is 212808684769. The reversal of 212808684734 is 437486808212.

212808684734 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 Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 11763959 + ... + 11782034.

It is an arithmetic number, because the mean of its divisors is an integer number (39910459830).

Almost surely, 2^212808684734 is an apocalyptic number.

212808684734 is a deficient number, since it is larger than the sum of its proper divisors (106474993906).

212808684734 is a wasteful number, since it uses less digits than its factorization.

212808684734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23550514.

The product of its (nonzero) digits is 4128768, while the sum is 53.

The spelling of 212808684734 in words is "two hundred twelve billion, eight hundred eight million, six hundred eighty-four thousand, seven hundred thirty-four".