21084362353 has 8 divisors (see below), whose sum is σ = 22529433960. Its totient is φ = 19662048000.

The previous prime is 21084362329. The next prime is 21084362357. The reversal of 21084362353 is 35326348012.

It can be written as a sum of positive squares in 4 ways, for example, as 8991401329 + 12092961024 = 94823^2 + 109968^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 21084362353 - 2⁹ = 21084361841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21084362357) 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 7 ways as a sum of consecutive naturals, for example, 5687398 + ... + 5691103.

It is an arithmetic number, because the mean of its divisors is an integer number (2816179245).

Almost surely, 2^21084362353 is an apocalyptic number.

It is an amenable number.

21084362353 is a deficient number, since it is larger than the sum of its proper divisors (1445071607).

21084362353 is a wasteful number, since it uses less digits than its factorization.

21084362353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11378627.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 21084362353 in words is "twenty-one billion, eighty-four million, three hundred sixty-two thousand, three hundred fifty-three".