212394690834 has 8 divisors (see below), whose sum is σ = 424789381680. Its totient is φ = 70798230276.

The previous prime is 212394690817. The next prime is 212394690847. The reversal of 212394690834 is 438096493212.

212394690834 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.

212394690834 is an admirable number.

It is a super-2 number, since 2×212394690834² (a number of 23 digits) contains 22 as substring.

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, 17699557564 + ... + 17699557575.

It is an arithmetic number, because the mean of its divisors is an integer number (53098672710).

Almost surely, 2^212394690834 is an apocalyptic number.

212394690834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

212394690834 is a wasteful number, since it uses less digits than its factorization.

212394690834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35399115144.

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 212394690834 in words is "two hundred twelve billion, three hundred ninety-four million, six hundred ninety thousand, eight hundred thirty-four".