21835174106 has 8 divisors (see below), whose sum is σ = 32756159604. Its totient is φ = 10916454240.

The previous prime is 21835174103. The next prime is 21835174133. The reversal of 21835174106 is 60147153812.

21835174106 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 20921018881 + 914155225 = 144641^2 + 30235^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 21835174106.

It is not an unprimeable number, because it can be changed into a prime (21835174103) 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, 542105 + ... + 580988.

Almost surely, 2^21835174106 is an apocalyptic number.

21835174106 is a deficient number, since it is larger than the sum of its proper divisors (10920985498).

21835174106 is a wasteful number, since it uses less digits than its factorization.

21835174106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132816.

The product of its (nonzero) digits is 40320, while the sum is 38.

The spelling of 21835174106 in words is "twenty-one billion, eight hundred thirty-five million, one hundred seventy-four thousand, one hundred six".