21833893573 has 2 divisors, whose sum is σ = 21833893574. Its totient is φ = 21833893572.

The previous prime is 21833893513. The next prime is 21833893633. The reversal of 21833893573 is 37539833812.

It is a balanced prime because it is at equal distance from previous prime (21833893513) and next prime (21833893633).

It can be written as a sum of positive squares in only one way, i.e., 19454112484 + 2379781089 = 139478^2 + 48783^2 .

It is a cyclic number.

It is not a de Polignac number, because 21833893573 - 2²¹ = 21831796421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21833893573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21833893513) 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 as a sum of consecutive naturals, namely, 10916946786 + 10916946787.

It is an arithmetic number, because the mean of its divisors is an integer number (10916946787).

Almost surely, 2^21833893573 is an apocalyptic number.

It is an amenable number.

21833893573 is a deficient number, since it is larger than the sum of its proper divisors (1).

21833893573 is an equidigital number, since it uses as much as digits as its factorization.

21833893573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3265920, while the sum is 52.

The spelling of 21833893573 in words is "twenty-one billion, eight hundred thirty-three million, eight hundred ninety-three thousand, five hundred seventy-three".