20833434733 has 2 divisors, whose sum is σ = 20833434734. Its totient is φ = 20833434732.

The previous prime is 20833434719. The next prime is 20833434749. The reversal of 20833434733 is 33743433802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19420652164 + 1412782569 = 139358^2 + 37587^2 .

It is a cyclic number.

It is not a de Polignac number, because 20833434733 - 2¹⁷ = 20833303661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20833434133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10416717366 + 10416717367.

It is an arithmetic number, because the mean of its divisors is an integer number (10416717367).

Almost surely, 2^20833434733 is an apocalyptic number.

It is an amenable number.

20833434733 is a deficient number, since it is larger than the sum of its proper divisors (1).

20833434733 is an equidigital number, since it uses as much as digits as its factorization.

20833434733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 435456, while the sum is 40.

The spelling of 20833434733 in words is "twenty billion, eight hundred thirty-three million, four hundred thirty-four thousand, seven hundred thirty-three".