210819303642 has 8 divisors (see below), whose sum is σ = 421638607296. Its totient is φ = 70273101212.

The previous prime is 210819303593. The next prime is 210819303647. The reversal of 210819303642 is 246303918012.

210819303642 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.

210819303642 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 210819303642.

It is not an unprimeable number, because it can be changed into a prime (210819303647) 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, 17568275298 + ... + 17568275309.

It is an arithmetic number, because the mean of its divisors is an integer number (52704825912).

Almost surely, 2^210819303642 is an apocalyptic number.

210819303642 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.

210819303642 is a wasteful number, since it uses less digits than its factorization.

210819303642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35136550612.

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 210819303642 in words is "two hundred ten billion, eight hundred nineteen million, three hundred three thousand, six hundred forty-two".