21433714633 has 2 divisors, whose sum is σ = 21433714634. Its totient is φ = 21433714632.

The previous prime is 21433714573. The next prime is 21433714637. The reversal of 21433714633 is 33641733412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17986028544 + 3447686089 = 134112^2 + 58717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21433714633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21433714592 and 21433714601.

It is not a weakly prime, because it can be changed into another prime (21433714637) 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 as a sum of consecutive naturals, namely, 10716857316 + 10716857317.

It is an arithmetic number, because the mean of its divisors is an integer number (10716857317).

Almost surely, 2^21433714633 is an apocalyptic number.

It is an amenable number.

21433714633 is a deficient number, since it is larger than the sum of its proper divisors (1).

21433714633 is an equidigital number, since it uses as much as digits as its factorization.

21433714633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 37.

The spelling of 21433714633 in words is "twenty-one billion, four hundred thirty-three million, seven hundred fourteen thousand, six hundred thirty-three".