21750926241 has 24 divisors (see below), whose sum is σ = 32206075552. Its totient is φ = 13046457600.

The previous prime is 21750926213. The next prime is 21750926261. The reversal of 21750926241 is 14262905712.

It is not a de Polignac number, because 21750926241 - 2¹⁴ = 21750909857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21750926241.

It is not an unprimeable number, because it can be changed into a prime (21750926261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 273655 + ... + 344076.

Almost surely, 2^21750926241 is an apocalyptic number.

It is an amenable number.

21750926241 is a deficient number, since it is larger than the sum of its proper divisors (10455149311).

21750926241 is a wasteful number, since it uses less digits than its factorization.

21750926241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617853 (or 617842 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The spelling of 21750926241 in words is "twenty-one billion, seven hundred fifty million, nine hundred twenty-six thousand, two hundred forty-one".