21044805500234 has 8 divisors (see below), whose sum is σ = 31567457895588. Its totient is φ = 10522319535040.

The previous prime is 21044805500233. The next prime is 21044805500237. The reversal of 21044805500234 is 43200550844012.

It can be written as a sum of positive squares in 2 ways, for example, as 20270678276209 + 774127224025 = 4502297^2 + 879845^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21044805500233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41290937 + ... + 41797500.

Almost surely, 2^{21044805500234} is an apocalyptic number.

21044805500234 is a deficient number, since it is larger than the sum of its proper divisors (10522652395354).

21044805500234 is a wasteful number, since it uses less digits than its factorization.

21044805500234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83215080.

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 21044805500234 in words is "twenty-one trillion, forty-four billion, eight hundred five million, five hundred thousand, two hundred thirty-four".